问题
解答题
①7.54÷2.8(商保留两位小数)=______
②0.2×3.5=______
③56÷5.1=______.
答案
①7.54÷2.8(商保留两位小数)≈2.69;
2.692
28 75.4
56
.194
168
.260
252
.80
56
.24
②0.2×3.5=0.7;
3.5
×0.2 0.70
③56÷5.1≈10.98.
10.980
51 560
51
.500
459
.410
408
.20
故答案为:2.69;0.7;10.98.