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计算下列各题,能简算的要简算.(1)79÷115+29×511(2)(16+19-112)×4×9(3)(8.5-4)×10.32÷4(4)5÷14×[(1-14)×1.2](5)1.3-3.79+9.7-6.21(6)3.2×12.5×2.5.
题目详情
| 计算下列各题,能简算的要简算. (1)
| (2)(
| (3)(8.5-4)×10.32÷4 | ||||||||||||||
(4)5÷
| (5)1.3-3.79+9.7-6.21 | (6)3.2×12.5×2.5. |
| 计算下列各题,能简算的要简算. (1)
| (2)(
| (3)(8.5-4)×10.32÷4 | ||||||||||||||
(4)5÷
| (5)1.3-3.79+9.7-6.21 | (6)3.2×12.5×2.5. |
(1)
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(1)
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| 9 |
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▼优质解答
答案和解析
(1)
÷
+
×
,
=(
+
)×
,
=
;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
7 7 79 9 9÷
+
×
,
=(
+
)×
,
=
;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. ÷
11 11 115 5 5+
×
,
=(
+
)×
,
=
;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
2 2 29 9 9×
,
=(
+
)×
,
=
;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
5 5 511 11 11,
=(
+
)×
,
=
;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
7 7 79 9 9+
)×
,
=
;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. +
2 2 29 9 9)×
,
=
;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
5 5 511 11 11,
=
;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
5 5 511 11 11;
(2)(
+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
1 1 16 6 6+
-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. +
1 1 19 9 9-
)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
1 1 112 12 12)×4×9,
=
×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
1 1 16 6 6×36+
×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. +
1 1 19 9 9×36−
×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. −
1 1 112 12 12×36,
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
1 1 14 4 4×[(1-
)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
1 1 14 4 4)×1.2],
=5÷
×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. ÷
1 1 14 4 4×[
×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
3 3 34 4 4×1.2],
=5÷
×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
1 1 14 4 4×
,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
9 9 910 10 10,
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 7 |
| 9 |
| 11 |
| 5 |
| 2 |
| 9 |
| 5 |
| 11 |
=(
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 7 |
| 9 |
| 11 |
| 5 |
| 2 |
| 9 |
| 5 |
| 11 |
=(
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. ÷
| 11 |
| 5 |
| 2 |
| 9 |
| 5 |
| 11 |
=(
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 2 |
| 9 |
| 5 |
| 11 |
=(
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 5 |
| 11 |
=(
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. +
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 5 |
| 11 |
(2)(
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. +
| 1 |
| 9 |
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 1 |
| 12 |
=
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 1 |
| 6 |
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. +
| 1 |
| 9 |
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. −
| 1 |
| 12 |
=6+4-3
=7;
(3)(8.5-4)×10.32÷4,
=4.5×10.32÷4,
=46.44÷4,
=11.61,
(4)5÷
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 1 |
| 4 |
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 1 |
| 4 |
=5÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100. ÷
| 1 |
| 4 |
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 3 |
| 4 |
=5÷
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 1 |
| 4 |
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
| 9 |
| 10 |
=18,
(5)1.3-3.79+9.7-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1,
(6)3.2×12.5×2.5,
=(12.5×8)×(2.5×0.4),
=100×1,
=100.
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