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能简算的要简算.5÷56+56÷537÷56+47×6525÷(34+25)(48-4.8×56)÷493450+450÷18×151.7-0.81+1.3-0.19.
题目详情
能简算的要简算.
5÷
+
÷5
÷
+
×
÷(
+
) 5÷
+
÷5
+
÷5
5 5 6 6
÷5
5 5 6 6
÷
+
×
÷
+
×
3 3 7 7
+
×
5 5 6 6
×
4 4 7 7
6 6 5 5
÷(
+
)
÷(
+
)
2 2 5 5
+
)
3 3 4 4
)
2 2 5 5 (48-4.8×
)÷
3450+450÷18×15 1.7-0.81+1.3-0.19. (48-4.8×
)÷
)÷
5 5 6 6
4 4 9 9 3450+450÷18×15 1.7-0.81+1.3-0.19.
5÷
|
|
| ||||||||||||||||||
(48-4.8×
| 3450+450÷18×15 | 1.7-0.81+1.3-0.19. |
5÷
|
|
| ||||||||||||||||||
(48-4.8×
| 3450+450÷18×15 | 1.7-0.81+1.3-0.19. |
5 |
6 |
5 |
6 |
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
2 |
5 |
3 |
4 |
2 |
5 |
5 |
6 |
5 |
6 |
5 |
6 |
5 |
6 |
5 |
6 |
5 |
6 |
5 |
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3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
5 |
6 |
4 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
6 |
5 |
2 |
5 |
3 |
4 |
2 |
5 |
2 |
5 |
3 |
4 |
2 |
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2 |
5 |
3 |
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2 |
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4 |
9 |
▼优质解答
答案和解析
(1)5÷
+
÷5
=6+
=6
;
(2)
÷
+
×
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 5 56 6 6+
÷5
=6+
=6
;
(2)
÷
+
×
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 5 56 6 6÷5
=6+
=6
;
(2)
÷
+
×
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
1 1 16 6 6
=6
;
(2)
÷
+
×
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
1 1 16 6 6;
(2)
÷
+
×
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
3 3 37 7 7÷
+
×
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 5 56 6 6+
×
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 4 47 7 7×
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 6 65 5 5
=
×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
3 3 37 7 7×
+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 6 65 5 5+
×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 4 47 7 7×
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 6 65 5 5
=(
+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
3 3 37 7 7+
)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 4 47 7 7)×
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 6 65 5 5
=1×
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 6 65 5 5
=
;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 6 65 5 5;
(3)
÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
2 2 25 5 5÷(
+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
3 3 34 4 4+
)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
2 2 25 5 5)
=
÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
2 2 25 5 5÷
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
23 23 2320 20 20
=
;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
8 8 823 23 23;
(4)(48-4.8×
)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 5 56 6 6)÷
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 4 49 9 9
=(48-4)÷
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 4 49 9 9
=44÷
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 4 49 9 9
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 |
6 |
5 |
6 |
=6+
1 |
6 |
=6
1 |
6 |
(2)
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 |
6 |
5 |
6 |
=6+
1 |
6 |
=6
1 |
6 |
(2)
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 |
6 |
=6+
1 |
6 |
=6
1 |
6 |
(2)
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
1 |
6 |
=6
1 |
6 |
(2)
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
1 |
6 |
(2)
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
3 |
7 |
5 |
6 |
4 |
7 |
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 |
6 |
4 |
7 |
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 |
7 |
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 |
5 |
=
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
3 |
7 |
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 |
5 |
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 |
7 |
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 |
5 |
=(
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
3 |
7 |
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 |
7 |
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 |
5 |
=1×
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 |
5 |
=
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
6 |
5 |
(3)
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
2 |
5 |
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
3 |
4 |
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
2 |
5 |
=
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
2 |
5 |
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
23 |
20 |
=
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
8 |
23 |
(4)(48-4.8×
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
5 |
6 |
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 |
9 |
=(48-4)÷
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 |
9 |
=44÷
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
4 |
9 |
=99;
(5)3450+450÷18×15
=3450+25×15
=3450+375
=3825;
(6)1.7-0.81+1.3-0.19
=(1.7+1.3)-(0.81+0.19)
=3-1
=2.
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