0.89×0.890.89 2.1×2.852.85
2.34×1.523.4×0.15 5.6×0.35.6+0.3
0.5×0.6= 0.12×50= 5.8-0.8 ×5 =
0.004×7= 0.125×0.8= 6.552- 0.5=
①3.54×0.48 =
②★0.79×2.03 =
③0.028×1.7≈(得数精确到百分位)
④★4.92÷12=
①2.5×3.2×1.25
②101×9.25- 9.25
③4.8+1.2×3.2
④6.28×6.9 +0.31×62.8