1 m370dm3
4÷11= 5÷(12+3)= (15﹣8)÷19= 72= 7.6×6+2.4×6=
63= 1.53﹣0.5= 9.8+0.9= 1.56+3.44= 1.25×2×8=
①34.13﹣15.87﹣14.13
②1.2﹣3.67+9.8﹣6.33
③25×(0.4+0.04)
④19×956+19×44
⑤23÷2.3﹣2.5×0.8
⑥0.8×[(10﹣6.76)÷1.2]