问题
解答题
细心计算 6.3×
(4.5×1.1×4.8)÷(3.3×0.8×0.5) 7÷(7-7×0÷7+7÷7); 18×45(
|
答案
6.3×
+3.7÷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×
+18×45×5 6 1 5
=675+162
=837.