题目内容
口算
0.4×3=________
0.25×4=________
0.9×0.01=________
0.4×0.3=________
4.2÷0.5=________
0.15×0.4=________
0.63×2= 4.8÷0.6= 1.7+3=
4×9×0.25= 2÷0.02=
口算.
0.4+0.5= 1-0.6= 8.5-3.2=