x+36=78 4 - x = 1.2 (100-3x)÷2 =38
1.03+2.7= 4×2.5= 7÷0.1= 0.8÷0.01= 4.4×10=
3.7-2.63= 5.4÷6= 0.5×3= 0.33×20= 99.9×0÷9.9=
①10.56÷2.2=
②42.4÷13≈ (保留两位小数)
③1.6÷32= (计算并验算)
35.2÷16=
38.16÷7.2=
5.6÷0.35=
2.8÷0.12=
①2x+8=16
②x÷5=10
③x+7x=8
④6x-6=0
①
②
③0.79×99+0.79
④3.8×97+0.38×30
⑤
⑥(﹣)×9×12