简算
4.9+0.1﹣4.9+0.1
10.78﹣(2.78+3.693)
99.99×22.22+33.33×33.34
(2.5×2.5+2.5×2.5+2.5×2.5+2.5×2.5)×8.
计算
17×40= |
100﹣63= |
3+1.68= |
2.8×0.4= |
14﹣7.4= |
1.92÷0.04= |
0.32×500= |
0.65+4.35= |
10﹣5.4= |
4÷20= |
3.5×200= |
1.5﹣0.06= |
根据46×15=690,1575÷15=105,直接写出下面各题的结果.
4.6×15=
0.46×0.15=
15.75÷0.15=
15.75÷1.5= .
看图列式,不计算
看图列式,不计算