简便运算

​3.2×2.5×0.125

74.9÷ 0.25÷ 4
2.5×0.37× 0.04
3.68×7.8+2.2×3.68
3.8×0.6+62×0.06 4.7×9.9+0.47
24.98—(1.36+1.98)
4.69×10.1
3.2×2.5×0.125
74.9÷ 0.25÷ 4
2.5×0.37× 0.04
3.68×7.8+2.2×3.68
3.8×0.6+62×0.06 4.7×9.9+0.47
24.98—(1.36+1.98)
4.69×10.1