计算:(能简算的要简算) 67.5×0.52+3.25×5.2) 35×8
计算:(能简算的要简算)67.5×0.52+3.25×5.2)35×8.8+0.6×15+60%36×(56+79)3.5×[(702-270)÷16]....
计算:(能简算的要简算) 67.5×0.52+3.25×5.2) 35×8.8+0.6×15+60% 36×(56+79) 3.5×[(702-270)÷16].
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(1)67.5×0.52+3.25×5.2
=6.75×5.2+3.25×5.2
=(6.75+3.25)×5.2
=10×5.2
=52
(2)
×8.8+0.6×
+60%
=0.6×8.8+0.6×0.2+0.6
=0.6×(8.8+0.2+1)
=0.6×10
=6
(3)36×(
+
)
=36×
+
×36
=30+28
=58
(4)3.5×[(702-270)÷16]
=3.5×[432÷16]
=3.5×27
=94.5
=6.75×5.2+3.25×5.2
=(6.75+3.25)×5.2
=10×5.2
=52
(2)
3 |
5 |
1 |
5 |
=0.6×8.8+0.6×0.2+0.6
=0.6×(8.8+0.2+1)
=0.6×10
=6
(3)36×(
5 |
6 |
7 |
9 |
=36×
5 |
6 |
7 |
9 |
=30+28
=58
(4)3.5×[(702-270)÷16]
=3.5×[432÷16]
=3.5×27
=94.5
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