| 126+574=________; | 450-60=________; | 48×5=________; | 420÷14=________; |
| 0.8÷0.2=________; | 3.14+1.86=________; | 6.7-3.8=________; | 101×25=________; |
| 2.5×8=________; | + =________; | ÷ =________; | + + =________; |
- =________; | 1- =________; | × =________; | 3- - =________; |
16× =________; | ÷ =________; | ![]() =________; | 1÷ - =________. |



210
0分析:根据整数、分数、小数的加减乘除计算的方法进行计算,能简算的要简算.
解答:
| 126+574=700; | 450-60=390; | 48×5=240; | 420÷14=30; |
| 0.8÷0.2=4; | 3.14+1.86=5; | 6.7-3.8=2.9; | 101×25=2525; |
| 2.5×8=20; | + =1; | ÷ =2; | + + =1 ; |
- = ; | 1- = ; | × = ; | 3- - =2; |
16× =10; | ÷ = ; | ![]() = ; | 1÷ - =0. |
,
,
,
,2,10,
,
,0.点评:计算时,要灵活运用所学的知识,快速准确的进行计算.
+
=________;
=________;
+
=________;
-
=________;
×
=________;
=________;
÷
=________;
=________;
=________.