题目内容
细心计算
6.3×
+3.7÷
;
(4.5×1.1×4.8)÷(3.3×0.8×0.5)
7÷(7-7×0÷7+7÷7);
18×45(
+
).
6.3×
| 3 |
| 4 |
| 4 |
| 3 |
(4.5×1.1×4.8)÷(3.3×0.8×0.5)
7÷(7-7×0÷7+7÷7);
18×45(
| 5 |
| 6 |
| 1 |
| 5 |
6.3×
+3.7÷
=(6.3+3.7)×0.75
=10×0.75
=7.5;
(4.5×1.1×4.8)÷(3.3×0.8×0.5)
=23.76÷1.32
=18;
7÷(7-7×0÷7+7÷7)
=7÷(7-0+1)
=7÷8
=0.875;
18×45×(
+
)
=18×45×
+18×45×
=675+162
=837.
| 3 |
| 4 |
| 4 |
| 3 |
=(6.3+3.7)×0.75
=10×0.75
=7.5;
(4.5×1.1×4.8)÷(3.3×0.8×0.5)
=23.76÷1.32
=18;
7÷(7-7×0÷7+7÷7)
=7÷(7-0+1)
=7÷8
=0.875;
18×45×(
| 5 |
| 6 |
| 1 |
| 5 |
=18×45×
| 5 |
| 6 |
| 1 |
| 5 |
=675+162
=837.
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