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递等式计算(能简便的要简便)0.11×1.8+8.2×0.113.24×0.4×2.515.2×101-15.26.4÷0.4÷24×(1.5+0.25)1.9-1.9×0.95.4÷(3.94+0.86)×0.813.6+4.5×2.2.
题目详情
递等式计算(能简便的要简便) 0.11×1.8+8.2×0.11 | 3.24×0.4×2.5 | 15.2×101-15.2 | 6.4÷0.4÷2 |
4×(1.5+0.25) | 1.9-1.9×0.9 | 5.4÷(3.94+0.86)×0.8 | 13.6+4.5×2.2. |
▼优质解答
答案和解析
(1)0.11×1.8+8.2×0.11
=0.11×(1.8+8.2)
=0.11×10
=1.1;
(2)3.24×0.4×2.5
=3.24×(0.4×2.5)
=3.24×1
=3.24;
(3)15.2×101-15.2
=15.2×(101-1)
=15.2×100
=1520;
(4)6.4÷0.4÷2
=6.4÷(0.4×2)
=6.4÷0.8
=8;
(5)4×(1.5+0.25)
=4×1.5+4×0.25
=6+1
=7;
(6)1.9-1.9×0.9
=1.9×(1-0.9)
=1.9×0.1
=0.19;
(7)5.4÷(3.94+0.86)×0.8
=5.4÷4.8×0.8
=1.125×0.8
=0.9;
(8)13.6+4.5×2.2
=13.6+9.9
=23.5.
=0.11×(1.8+8.2)
=0.11×10
=1.1;
(2)3.24×0.4×2.5
=3.24×(0.4×2.5)
=3.24×1
=3.24;
(3)15.2×101-15.2
=15.2×(101-1)
=15.2×100
=1520;
(4)6.4÷0.4÷2
=6.4÷(0.4×2)
=6.4÷0.8
=8;
(5)4×(1.5+0.25)
=4×1.5+4×0.25
=6+1
=7;
(6)1.9-1.9×0.9
=1.9×(1-0.9)
=1.9×0.1
=0.19;
(7)5.4÷(3.94+0.86)×0.8
=5.4÷4.8×0.8
=1.125×0.8
=0.9;
(8)13.6+4.5×2.2
=13.6+9.9
=23.5.
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