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计算:(能简算的要简算)(1)34×27+27×34(2)(532+18)×16(3)45×3.5+5.5×80%+0.8(4)1318÷(56+23×38)(5)85×54÷18+745(6)0.4×[1.4-(2.4-2.25)].
题目详情
计算:(能简算的要简算)
计算:(能简算的要简算)
(1)
×
+
×
(2)(
+
)×16 (3)
×3.5+5.5×80%+0.8 (4)
÷(
+
×
) (5)85×54÷18+745 (6)0.4×[1.4-(2.4-2.25)]. (1)
×
+
×
(2)(
+
)×16 (3)
×3.5+5.5×80%+0.8 (1)
×
+
×
×
+
×
3 4 3 3 4 4
+
×
2 7 2 2 7 7
×
2 7 2 2 7 7
3 4 3 3 4 4 (2)(
+
)×16
+
)×16
5 32 5 5 32 32
)×16
1 8 1 1 8 8 (3)
×3.5+5.5×80%+0.8
×3.5+5.5×80%+0.8
4 5 4 4 5 5 (4)
÷(
+
×
) (5)85×54÷18+745 (6)0.4×[1.4-(2.4-2.25)]. (4)
÷(
+
×
)
÷(
+
×
)
13 18 13 13 18 18
+
×
)
5 6 5 5 6 6
×
)
2 3 2 2 3 3
)
3 8 3 3 8 8 (5)85×54÷18+745 (6)0.4×[1.4-(2.4-2.25)].
(1)
| (2)(
| (3)
| ||||||||||||||
(4)
| (5)85×54÷18+745 | (6)0.4×[1.4-(2.4-2.25)]. |
(1)
| (2)(
| (3)
| ||||||||||||||
(4)
| (5)85×54÷18+745 | (6)0.4×[1.4-(2.4-2.25)]. |
(1)
| (2)(
| (3)
| ||||||||||||||
(4)
| (5)85×54÷18+745 | (6)0.4×[1.4-(2.4-2.25)]. |
3 |
4 |
2 |
7 |
2 |
7 |
3 |
4 |
5 |
32 |
1 |
8 |
4 |
5 |
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
3 |
4 |
2 |
7 |
2 |
7 |
3 |
4 |
5 |
32 |
1 |
8 |
4 |
5 |
3 |
4 |
2 |
7 |
2 |
7 |
3 |
4 |
3 |
4 |
2 |
7 |
2 |
7 |
3 |
4 |
3 |
4 |
2 |
7 |
2 |
7 |
3 |
4 |
2 |
7 |
2 |
7 |
3 |
4 |
2 |
7 |
3 |
4 |
3 |
4 |
5 |
32 |
1 |
8 |
5 |
32 |
1 |
8 |
5 |
32 |
1 |
8 |
1 |
8 |
4 |
5 |
4 |
5 |
4 |
5 |
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
5 |
6 |
2 |
3 |
3 |
8 |
2 |
3 |
3 |
8 |
3 |
8 |
▼优质解答
答案和解析
(1)
×
+
×
=(
+
)×
=
×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 4 3 3 34 4 4×
+
×
=(
+
)×
=
×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 7 2 2 27 7 7+
×
=(
+
)×
=
×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 7 2 2 27 7 7×
=(
+
)×
=
×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 4 3 3 34 4 4
=(
+
)×
=
×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 4 3 3 34 4 4+
)×
=
×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 4 3 3 34 4 4)×
=
×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 7 2 2 27 7 7
=
×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 2 3 3 32 2 2×
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 7 2 2 27 7 7
=
;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 7 3 3 37 7 7;
(2)(
+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 32 5 5 532 32 32+
)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1 8 1 1 18 8 8)×16
=
×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 32 5 5 532 32 32×16+
×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1 8 1 1 18 8 8×16
=
+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 2 5 5 52 2 2+2
=
;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
9 2 9 9 92 2 2;
(3)
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
4 5 4 4 45 5 5×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13 18 13 13 1318 18 18÷(
+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 6 5 5 56 6 6+
×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 3 2 2 23 3 3×
)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 8 3 3 38 8 8)
=
÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13 18 13 13 1318 18 18÷(
+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 6 5 5 56 6 6+
)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1 4 1 1 14 4 4)
=
÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13 18 13 13 1318 18 18÷
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13 12 13 13 1312 12 12
=
;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 3 2 2 23 3 3;
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 |
4 |
2 |
7 |
2 |
7 |
3 |
4 |
=(
3 |
4 |
3 |
4 |
2 |
7 |
=
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 |
4 |
2 |
7 |
2 |
7 |
3 |
4 |
=(
3 |
4 |
3 |
4 |
2 |
7 |
=
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 |
7 |
2 |
7 |
3 |
4 |
=(
3 |
4 |
3 |
4 |
2 |
7 |
=
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 |
7 |
3 |
4 |
=(
3 |
4 |
3 |
4 |
2 |
7 |
=
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 |
4 |
=(
3 |
4 |
3 |
4 |
2 |
7 |
=
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 |
4 |
3 |
4 |
2 |
7 |
=
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 |
4 |
2 |
7 |
=
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 |
7 |
=
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 |
2 |
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 |
7 |
=
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 |
7 |
(2)(
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 |
32 |
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1 |
8 |
=
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 |
32 |
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1 |
8 |
=
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 |
2 |
=
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
9 |
2 |
(3)
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
4 |
5 |
=(3.5+5.5+1)×0.8
=10×0.8
=8;
(4)
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13 |
18 |
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 |
6 |
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 |
3 |
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3 |
8 |
=
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13 |
18 |
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5 |
6 |
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1 |
4 |
=
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13 |
18 |
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13 |
12 |
=
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2 |
3 |
(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;
(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
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