48× , 积的末尾有0;480× , 积的末尾有0;483× , 积的末尾有0。
1.7×2.82.8 0.37÷91
4.6×6.846×0.68 4.8÷0.24.8
0.5×0.7=
70×0.6=
1÷0.25=
3-1.4=
2.5×0.8=
5.5÷5=
6.3÷0.9=
8.75+10.5=
0.72=
60×0.08=
★4.8×0.65 ★24.8÷0.32
9.26÷1.5 30.7×0.94
(结果精确到十分位)(结果保留整数)
7.4×9.9 0.16×0.25×0.125
2.5×167-25×0.7 5.85+0.45×3.2
A B C。
a(1,1) b(5,1) c(5,3) d(2,3)