脱式计算:7.4+2.6×4.8+5.2 0.38+9.62...
答案:1 悬赏:30 手机版
解决时间 2021-02-01 20:23
- 提问者网友:遁入空寂
- 2021-01-31 21:20
脱式计算:7.4+2.6×4.8+5.2 0.38+9.62...
最佳答案
- 五星知识达人网友:空山清雨
- 2021-01-31 22:12
(1)7.4+2.6×4.8+5.2
=7.4+12.48+5.2
=19.88+5.2
=25.08;
(2)0.38+9.62÷3.7×5.4
=0.38+2.6×5.4
=0.38+14.04
=14.42;
(3)4.38÷(36.94+34.3×0.2)
=4.38÷(36.94+6.86)
=4.38÷43.8;
=0.1;
(4)(3.8+0.7)×(22.4-22.4÷4)
=4.5×(22.4-5.6)
=4.5×16.8
=75.6.
=7.4+12.48+5.2
=19.88+5.2
=25.08;
(2)0.38+9.62÷3.7×5.4
=0.38+2.6×5.4
=0.38+14.04
=14.42;
(3)4.38÷(36.94+34.3×0.2)
=4.38÷(36.94+6.86)
=4.38÷43.8;
=0.1;
(4)(3.8+0.7)×(22.4-22.4÷4)
=4.5×(22.4-5.6)
=4.5×16.8
=75.6.
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