42.83÷7≈
3.77×1.8≈
0.02×9.6≈
85.44÷13≈
5.61×2.9≈
4.67×0.9≈
101.5÷9≈
9.99×0.02≈
1.66×6.1≈
①3.4×0.12 ②0.9×4.04 ③1.28×3.4(结果精确到百分位)