简便算式计算,需要计算过程?
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所有题目的简便计算过程如下:
(1)67+25+33+75
=(67+33)+(25+75)
=100+100
=200
(2)528-53-27
=528-(53+27)
=528-80
=448
(3)545-167-145
=545-145-167
=400-167
=233
(4)672-150-172
=672-172-150
=500-150
=350
(5)462-35+38
=462+38-35
=500-35
=465
(6)25×38×4
=25×4×38
=100×38
=3800
(7)25×24
=25×4×6
=100×6
=600
(8)125×32
=125×8×4
=1000×4
=4000
(9)63×99+63
=63×99+63×1
=63×(99+1)
=63×100
=6300
(10)25+199×25
=25×1+199×25
=(1+199)×25
=200×25
=5000
(11)49×101-49
=49×101-49×1
=49×(101-1)
=49×100
=4900
(12)102×65
=(100+2)×65
=100×65+2×65
=6500+130
=6630
(13)99×34
=(100-1)×34
=100×34-1×34
=3400-34
=3366
(14)34×34+34×65+34
=34×34+34×65+34×1
=34×(34+65+1)
=34×100
=3400
(15)23×57+44×23-23
=23×57+44×23-23×1
=23×(57+44-1)
=23×100
=2300
(1)67+25+33+75
=(67+33)+(25+75)
=100+100
=200
(2)528-53-27
=528-(53+27)
=528-80
=448
(3)545-167-145
=545-145-167
=400-167
=233
(4)672-150-172
=672-172-150
=500-150
=350
(5)462-35+38
=462+38-35
=500-35
=465
(6)25×38×4
=25×4×38
=100×38
=3800
(7)25×24
=25×4×6
=100×6
=600
(8)125×32
=125×8×4
=1000×4
=4000
(9)63×99+63
=63×99+63×1
=63×(99+1)
=63×100
=6300
(10)25+199×25
=25×1+199×25
=(1+199)×25
=200×25
=5000
(11)49×101-49
=49×101-49×1
=49×(101-1)
=49×100
=4900
(12)102×65
=(100+2)×65
=100×65+2×65
=6500+130
=6630
(13)99×34
=(100-1)×34
=100×34-1×34
=3400-34
=3366
(14)34×34+34×65+34
=34×34+34×65+34×1
=34×(34+65+1)
=34×100
=3400
(15)23×57+44×23-23
=23×57+44×23-23×1
=23×(57+44-1)
=23×100
=2300
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