1.6+8.4×0.3
4.16÷0.04-7.38
42-68.8÷8.6×1.5
2.25×(4+0.8)
8.23×9.9+0.823
( )
×=
47+53= 420÷70= 100﹣28.5= 0.03×8= 234﹣199=
50×80= 2.7÷0.9= += 1÷= ×=