用递等式计算(能简便的用简便方法计算)。
(1)(4.6+4.6+4.6+4.6)×2.5
(2)7.8×2.02
(3)5.8-5.8÷2.9-2.9
(4)2.04÷(7.1-3.7)+5.9
(5)(0.2×15-2.72)÷1.4
(6)36×3.2+3.6×68
(1)(4.6+4.6+4.6+4.6)×2.5
(2)7.8×2.02
(3)5.8-5.8÷2.9-2.9
(4)2.04÷(7.1-3.7)+5.9
(5)(0.2×15-2.72)÷1.4
(6)36×3.2+3.6×68
脱式计算.(能简算的要简算)
6.32÷2.5÷0.4 | 7.52×0.65÷0.752 | 1.25×(0.8+10) |
28.4×99+28.4 | [10﹣(6+3.03)]×1.01 | 11.5÷(3.12+1.48) |