0.25×0.046 = 2.52×3.4= 1.08×25= 0.12×0.16=
4.8×0.25=
10.1÷3.3=
2.5÷0.7=
2.5×7.1×4
0.125×1.4≈(保留两位小数) (商用循环小数) 10.75÷12.5= (用乘法验算) 3.25×9.04= (用除法验算) 递等式计算(能简算的要简算)一
16.12×99+16.12 5.2×0.9+0.9 (保留三位小数)
7.28×99+7.28 4.3×50×0.2 64-2.64×0.5
26×15.7+15.7×24 (2.275 +0.625)×0.28 2.7×5.4×3.9
3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8 8.9×1.1×4.7
3.6×9.85-5.46 6.58×4.5×0.9 2.8×0.5+1.58
递等式计算(能简算的要简算)二
8.05×3.4+7.6 32+4.9-0.9 4.8-4.8×0.5
(1.25-0.125)×8 4.85 + 0.35 ÷ 1.4 8.7 × 17.4 - 8.7 × 7.4
4.8×100.1 56.5×99+56.5 7.09×10.8-0.8×7.09
12.5×0.4×2.5×8 0.87×3.16+4.64 9.5×101
0.25×39+0.25 0.125×72 46×0.33+54×0.33
递等式计算(能简算的要简算)三
40.5 ÷ 0.81 × 0.18 4.8 ×(15 ÷ 2.4) 2.13×0×8257
6.81+6.81×99 0.25×185×40 4.4×0.8-3.4×0.8
(9.37+9.37+9.37+9.37)× 2.5 4.2.×1.+1.×1.75
2.37×6.3+2.37×3.7 2.5×1.25×0.32 3.8×10.1
2.5×(3.8×0.04) 7.69×101 3.8×10.1
递等式计算(能简算的要简算)四
(8×5.27) ×1.25 6.81+6.81×99 0.25×185×40
6.8×0.75÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.2
9.5×99 13.5×0.98 12.5×8.8
0.68 ÷(5.2 -3.5)×
3.2×1.25 7.6×99 2.5×3.2×12.5 3.8×9.9 ×9.2
1.25 12.5