① = ②3.14×32= ③ = ④1÷50%=
⑤ = ⑥ = ⑦ = ⑧ =
3.6+7.5=
202﹣98=
910÷13=
2.5×0.4=
+=
5-=
÷=
3÷2×=
①A同学说:计算80÷4时,可以先看成8÷4,就是8个十除以4,得到2个十,就是20。
②B同学说:计算0.8÷4时,可以先看成8÷4,就是8个0.1除以4,得到2个0.1,就是0.2。
请你思考:计算÷4时,可以怎样计算?请像上面两位同学一样描述计算过程。
6﹣0.4=
7.52+2.48=
0.73÷0.1=
0÷×=
15×60=
÷=
4-=
24××
=
8.1÷0.9=
52-30=
12×6=
5.6+7=
36+64=
-=
×36=
+=
0.25﹣0.18=
3 ×4=
0.3×400=
39.5÷8=
×10=
÷ =
52=
268+332=
① × = ②24× = ③3× = ④1﹣ =
⑤ ÷2= ⑥2÷ = ⑦ ÷ = ⑧0÷ =
36× = 12× = × = ×3=
1÷ = ÷6= ÷ = 100÷10%=
9.56+1.34=
=
1÷0.25%=