7.68×0.987.68 7.68×1.987.68 7.68×0.987.68÷0.98
3.68×03.68 7.6÷1.027.6 7.68×1.57.68÷1.5
5÷0.01= 10÷0.2= 1.45×10= 估算:5.98×7.156≈
0.6÷10= 4.5÷0.9= 0.4×1.5= 估算:591.8÷19.156≈
①5.6×3.9﹣2.6×3.9
②1.8×0.9+0.18
③63÷0.5÷0.2
④12.95×1.1﹣12.95
⑤1.2×9.9
⑥1.25×0.25×3.2