①×56=
②
③0.4+=
④12÷=
⑤
⑥
⑦
⑧÷18 =
-=
+=
1-=
12÷13=
82=
0.23=
15.3÷0.3=
1.2+0.8÷0.4=
1-=
1- =
2+=
0.6×2.5= 7×0.03= 12.5÷2.5= 2.8×0.3=
4.5÷0.01= 1.8×50= 10-0.13= 0.125×0.25×32=
列式:
70分=小时。