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计算下面各题,怎样简便就怎样算.1.29+3.7+0.71+6.319×96+962÷74400-(1300÷65+35)23.4-8.54-1.466.75+0.5-4.8619×36-36×9425÷25+575÷25(320+280)÷50×4(117+43)×(84÷7)13.7-4.5-5.5+6.3125×5699+199+299+3125×32×25156×
题目详情
计算下面各题,怎样简便就怎样算.
计算下面各题,怎样简便就怎样算.
1.29+3.7+0.71+6.3 19×96+962÷74 400-(1300÷65+35) 23.4-8.54-1.46 6.75+0.5-4.86 19×36-36×9 425÷25+575÷25 (320+280)÷50×4 (117+43)×(84÷7) 13.7-4.5-5.5+6.3 125×56 99+199+299+3 125×32×25 156×l0l-156 99×999 5620÷(562×5) 1300÷25÷4 302×99+302 24×125 16×25 125×32×25. 1.29+3.7+0.71+6.3 19×96+962÷74 400-(1300÷65+35) 1.29+3.7+0.71+6.3 19×96+962÷74 400-(1300÷65+35) 23.4-8.54-1.46 6.75+0.5-4.86 19×36-36×9 23.4-8.54-1.46 6.75+0.5-4.86 19×36-36×9 425÷25+575÷25 (320+280)÷50×4 (117+43)×(84÷7) 425÷25+575÷25 (320+280)÷50×4 (117+43)×(84÷7) 13.7-4.5-5.5+6.3 125×56 99+199+299+3 13.7-4.5-5.5+6.3 125×56 99+199+299+3 125×32×25 156×l0l-156 99×999 125×32×25 156×l0l-156 99×999 5620÷(562×5) 1300÷25÷4 302×99+302 5620÷(562×5) 1300÷25÷4 302×99+302 24×125 16×25 125×32×25. 24×125 16×25 125×32×25.
1.29+3.7+0.71+6.3 | 19×96+962÷74 | 400-(1300÷65+35) |
23.4-8.54-1.46 | 6.75+0.5-4.86 | 19×36-36×9 |
425÷25+575÷25 | (320+280)÷50×4 | (117+43)×(84÷7) |
13.7-4.5-5.5+6.3 | 125×56 | 99+199+299+3 |
125×32×25 | 156×l0l-156 | 99×999 |
5620÷(562×5) | 1300÷25÷4 | 302×99+302 |
24×125 | 16×25 | 125×32×25. |
1.29+3.7+0.71+6.3 | 19×96+962÷74 | 400-(1300÷65+35) |
23.4-8.54-1.46 | 6.75+0.5-4.86 | 19×36-36×9 |
425÷25+575÷25 | (320+280)÷50×4 | (117+43)×(84÷7) |
13.7-4.5-5.5+6.3 | 125×56 | 99+199+299+3 |
125×32×25 | 156×l0l-156 | 99×999 |
5620÷(562×5) | 1300÷25÷4 | 302×99+302 |
24×125 | 16×25 | 125×32×25. |
1.29+3.7+0.71+6.3 | 19×96+962÷74 | 400-(1300÷65+35) |
23.4-8.54-1.46 | 6.75+0.5-4.86 | 19×36-36×9 |
425÷25+575÷25 | (320+280)÷50×4 | (117+43)×(84÷7) |
13.7-4.5-5.5+6.3 | 125×56 | 99+199+299+3 |
125×32×25 | 156×l0l-156 | 99×999 |
5620÷(562×5) | 1300÷25÷4 | 302×99+302 |
24×125 | 16×25 | 125×32×25. |
▼优质解答
答案和解析
(1)1.29+3.7+0.71+6.3
=(1.29+0.71)+(3.7+6.3)
=2+10
=12
(2)19×96+962÷74
=1824+13
=1837
(3)400-(1300÷65+35)
=400-(20+35)
=400-55
=345
(4)23.4-8.54-1.46
=23.4-(8.54+1.46)
=23.4-10
=13.4
(5)6.75+0.5-4.86
=7.25-4.86
=2.39
(6)19×36-36×9
=(19-9)×36
=10×36
=360
(7)425÷25+575÷25
=(425+575)÷25
=1000÷25
=40
(8)(320+280)÷50×4
=600÷50×4
=12×4
=48
(9)(117+43)×(84÷7)
=160×12
=1920
(10)13.7-4.5-5.5+6.3
=13.7-(4.5+5.5)+6.3
=13.7-10+6.3
=(13.7+6.3)-10
=20-10
=10
(11)125×56
=125×8×7
=(125×8)×7
=1000×7
=7000
(12)99+199+299+3
=99+199+299+(1+1+1)
=(99+1)+(199+1)+(299+1)
=100+200+300
=600;
(13)125×32×25
=125×8×4×25
=(125×8)×(4×25)
=1000×100
=100000
(14)156×l0l-156
=(101-1)×156
=100×156
=15600
(15)99×999
=(100-1)×999
=(100×999)-(1×999)
=99900-999
=98901
(16)5620÷(562×5)
=5620÷562÷5
=10÷5
=2
(17)1300÷25÷4
=1300÷(25×4)
=1300÷100
=13
(18)302×99+302
=(99+1)×302
=100×302
=30200
(19)24×125
=3×8×125
=3×(8×125)
=3×1000
=3000
(20)16×25
=4×4×25
=4×(4×25)
=4×100
=400
(21)125×32×25
=125×8×4×25
=(125×8)×(4×25)
=1000×100
=100000
=(1.29+0.71)+(3.7+6.3)
=2+10
=12
(2)19×96+962÷74
=1824+13
=1837
(3)400-(1300÷65+35)
=400-(20+35)
=400-55
=345
(4)23.4-8.54-1.46
=23.4-(8.54+1.46)
=23.4-10
=13.4
(5)6.75+0.5-4.86
=7.25-4.86
=2.39
(6)19×36-36×9
=(19-9)×36
=10×36
=360
(7)425÷25+575÷25
=(425+575)÷25
=1000÷25
=40
(8)(320+280)÷50×4
=600÷50×4
=12×4
=48
(9)(117+43)×(84÷7)
=160×12
=1920
(10)13.7-4.5-5.5+6.3
=13.7-(4.5+5.5)+6.3
=13.7-10+6.3
=(13.7+6.3)-10
=20-10
=10
(11)125×56
=125×8×7
=(125×8)×7
=1000×7
=7000
(12)99+199+299+3
=99+199+299+(1+1+1)
=(99+1)+(199+1)+(299+1)
=100+200+300
=600;
(13)125×32×25
=125×8×4×25
=(125×8)×(4×25)
=1000×100
=100000
(14)156×l0l-156
=(101-1)×156
=100×156
=15600
(15)99×999
=(100-1)×999
=(100×999)-(1×999)
=99900-999
=98901
(16)5620÷(562×5)
=5620÷562÷5
=10÷5
=2
(17)1300÷25÷4
=1300÷(25×4)
=1300÷100
=13
(18)302×99+302
=(99+1)×302
=100×302
=30200
(19)24×125
=3×8×125
=3×(8×125)
=3×1000
=3000
(20)16×25
=4×4×25
=4×(4×25)
=4×100
=400
(21)125×32×25
=125×8×4×25
=(125×8)×(4×25)
=1000×100
=100000
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