两百道脱式计算加答案
- 格式:docx
- 大小:39.44 KB
- 文档页数:31
两百道脱式计算加答案脱式计算大全及答案
1.
4×102-2×49
=40-2×49
=40-9
=310
2.
25×(2+4)
=25×2+25×4
=50+100
=150
3.
12×5+
=60+
4.
99×101
=99×(100+1) =99×100+99×1 =9900+99
=9999
5.
25×(7×4)
=25×4×7
=100×7
=700
6.
(25+12)×4 =25×4+12×4 =100+4
7.
1.4+0.7+.6
=(1.4+.6)+0.7 =10+0.7
=10.7
.
56×27+27×44 =27×(56+44) =27×100
=2700
9.
56×99+56
=56×(99+1)
=56×100
=5600
125×25××4
=(25×4)×(125×) =100×1000
=
12.
25×125×4
=(25×4)×125
=100×125
=
13.
125×47-47×25 =47×(125-25) =47×100
=4700
14.
124×3+65×124+76×110-76×7 =124×(3+65)+76×(110-7)=124×103+76×103
=103×(124+76)
=103×200
=
15.
233-1
=233-(1)
=233-200
=33
16.
122×25
=125××4×25
=(125×)×(4×25)
=1000×100
17.
1.25×(+10)
=125×+125×10 =1000+1250
=2250
1.
99+99×99
=99×(99+1)=99×100
=9900
19.
264×97+3×264 =264×(97+3)=264×100
=
62×4+44×6+6×1
=62×4+6×(44+1)
=62×4+6×62
=62×(4+6)
=62×10
=620
脱式计算大全及答案30道1.
4×102-2×49
=40-2×49
=40-9
=310
2.
25×(2+4)
=25×2+25×4 =50+100
=150
3.
12×5+
=60+
=6
4.
99×101
=99×(100+1) =99×100+99×1 =9900+99
=9999
5.
25×(7×4)
=25×4×7
=700
6.
(25+12)×4 =25×4+12×4 =100+4
=14
7.
1.4+0.7+.6
=(1.4+.6)+0.7 =10+0.7
=10.7
.
56×27+27×44 =27×(56+44) =27×100
9.
56×99+56
=56×(99+1)
=56×100
=5600
10.
125×25××4
=(25×4)×(125×) =100×1000
=
12.
25×125×4
=(25×4)×125
=100×125
=
13.
125×47-47×25
=47×(125-25)
=47×100
=4700
14.
124×3+65×124+76×110-76×7 =124×(3+65)+76×(110-7)=124×103+76×103
=103×(124+76)
=103×200
=
15.
233-1
=233-(1)
=233-200
=33
16.
122×25
=125××4×25
=(125×)×(4×25)=1000×100
=
17.
1.25×(+10)
=125×+125×10
=1000+1250
=2250
1.
99+99×99
=99×(99+1)
=99×100
=9900
19.
264×97+3×264
=264×(97+3)
=264×100
=
20.
62×4+44×6+6×1 =62×4+6×(44+1)=62×4+6×62
=62×(4+6)
=62×10
=620
……
30.
55+60+40+45
=(55+45)+(60+40)
=100+100
=200
脱式计算大全及答案带过程1. 6÷ 3/ – 3/ ÷6
=1/6x(3/-3/)
=1/6x0
=0
2. 4/7 × /7 × 5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
3. 5/2 -( 3/2 + 4/5 )
=/2-4/5
=1-4/5
=1/5
4. 6 ×( 1/2 + 2/3 )
=6x1/2+6x2/3
=3+4
=7
5. × 4/5 + × 11/5
=x(4/5+11/5)
=x3
=24
6. 31 × 5/6 – 5/6
=(31-1)x5/6
=30x5/6
=25
7. 4/5 × 25/16 + 2/3 × 3/4 =5/4+1/2
=5/4+2/4
=7/4
. 101 × 1/5 – 1/5 × 21
=(101-21)x1/5
=0x1/5
=16
四年级脱式计算大全(答案)
1、475+261
2、615+475+12、60-16+159
4、465-27
5、647-(5+265)
6、476+(65-29)
7、154×÷16 、400÷25×75 9、16×25÷16×25
10、552÷69× 11、600-120÷10 12、(600-120)÷10 13、(466-25×4)÷6 14、(43+32)÷(352)
1+(27+4)÷25 16、56×19+25×
简便计算大全及答案
300÷125÷
=300÷(125×)
=300÷1000
=0.3
396-96-172-2
=(396-96)-(172+2)= 300-200
= 100
125*24
= 12
= 1000*3
= 3000
26*15
= (20+6)*15
= 20*15 + 6*15
= 300+90
=390
25*99*4
= 25*4*99
= 100*99
= 9900
22
= 250*4*
= 1000*
= 000
(9+9+9+9)*25
= 4*9*25
= 4*25*9
= 100*9
= 900
脱式计算题大全带答案0.4×125×25×0.
=(0.4×25)×(125×0.)
=10×100=1000
1.25×(+10)
=1.25×+1.25×10
=10+12.5=22.5 9123-(123+.)
=9123-123-.
=9000-.
=991.2
1.24×.3+.3×1.76 =.3×(1.24+1.76) =.3×3=24.9
9999×1001
=9999×(1000+1)=9999×1000+9999×1 =
四年级脱式计算大全200道,带答案以及过程。
谢谢!火速!
125-25+75)÷(14×5) 120-60÷5×5
1024÷16×3 (135+415)÷5+16 1200-20×1
720-720÷160-144)÷24×3 240+40÷30×2
225-10×(6+13) (120×2+120)÷9 164-13×5+5
330÷(65-50) 12-6×÷16 64×(12+6)
19×96-962÷74 -(59+66)×64 5940÷45×(79-616)
(3164)÷7 ÷×(121÷11) (2010-906)×(65+15)
(20+120÷24)× 106×9-76×9 117÷13+36×15
3774÷37×(65) 540-(14+47)÷13 (30—30÷2)×11
(10+120÷24)×+7560÷90)÷14 21×(230-192÷4)
19×96-962÷74 -(59+66)×64 5940÷45×(79-616)
(3164)÷7 735×(700-400÷25) 1520-(1070+2×2)
9405-2940÷2×21 920-160÷40÷7 690+47×9
14+332÷64-760×24÷32+730 2100-94+4×54
04-2042)×23 42161-716)÷1 (247+1)×27÷25
36-720÷(360÷1) 100÷(63-54)×0 (52+912)×5-617 简便计算大全带答案
(1)2.2*0.125
=(2.5*4)*(*0.125)
=10*1
=10
(2)3.5-7+6.5
=3.5+6.5-7
=3
(3)1.2×2.5+0.×2.5
=2.5(1.2+0.)
=25
(4).9×1.25-0.9×1.25
=1.25(.9-0.9)
(5)12.5×7.4×0.
=12.5×0.×7.4
=74
(6)6.5×9.5+6.5×0.5 =6.5×(9.5+0.5)
=6.5×10
=65
(7)0.35×1.6+0.3.4 =0.35*(1.6+3.4)
=0.35*5
=1.75
()6.72-3.2-1.72
=6.7.2+1.72)
=6.75-5
(9)0.47+4.55
=0.45+4.7
=7
=11.37
(10)2×12.5-12.5×20
=(2-20)*12.5
=*12.5
=100
(11)23.6.07+3.65)
=23.6.07
=20-3.07
=16.93
(12)(4+0.4×0.25)×7×1.25 =(4+1)*7*10
=5*7*10
=350
(13)1.65×99+1.65
=1.65*(99+1)
=1.65*100
=165
(14)27.5-(7..4)
=27..4
=20+3.4
=23.4
(15)4×1.25+50×1.25×0.2×7.×9.9+0.7
=7.*(9.9+0.1)
=7.*10
=7
(16)4.×46+4.×54
=(46+54)*4.
=100*4.
=40
(17)673-327-173
=673-(327+173)
=673-500
=173
(1)4.44*2.5
=1.11*(4*2.5)
=1.11*10
=11.1
(19)3.5÷1.4
=(3.5÷0.7)÷(1.4÷0.7)=5÷2
=2.5
(20)1+2+3+4+5......+99+100
=(1+99)+(2+9)+(3+97)+......+(49+51)+50
=(100÷2-1)*100+50
=4900+50
=4950⑴运用加法交换律进行简便计算。
0.+5.6+0.12 1.7+3.5+0.22 5.6+2.0+14.4
=0.+0.12+5.6 =1.7+0.22+3.5 =5.6+14.4+2.0
=1+5.6 =2+3.5 =20+2.0
=6.6 =5.5 =22.0
⑵运用加法结合律进行简便计算
2.3+(0.56+4.7) 2.6+0.54+0.46+1.4 5.2+4.56+5.44
=(2.3+4.7)+0.56 =(2.6+1.4)+(0.54+0.46) =5.2+(4.56+5.44)
=7+0.0+1 =5.2+10
=7.1 =15.2
⑶、运用乘法交换律进行简便计算。
27×0.4 7.9×4 6.5×1.1×4 1.2.9×0.
=25×0.4×0.37 =7.5×4×0.39 =6.5×4×1.1 =1.2.9
=10×0.37 =30×0.39 =26×1.1 =1×3.9
=3.7 =11.7 =2.6 =3.9
⑷、运用乘法结合律进行简便计算。
1.9×7.5× 6.2×0.×
2.×1.5×6 4.1×
3.5×2
=1.9×(7.5×) =6.2×(0.×2.5) =4.3×(1.5×6) =4.1×(3.5×2) =1.9×60 =6.2×2 =4.3×9 =4.1×7
=114 =12.4 =3.7 =2.7
⑸、运用乘法分配律的加法进行简算。
13.6×4.6+4.6×6.4 0.72×23+77×0.72 2.6×32+32×2.4
=(13.6+6.4)×4.6 =(23+77)×0.72 =(2.6+2.4) ×32
=20×6.4 =100×0.72 =2
=12 =72 =160
⑹、运用乘法分配律的减法进行简算。
12×5.9-5.9×2 4.6×2.5-2.5×0.6 101×9.7-9.7
=(12-2) ×5.9 =(4.6-0.6)×2.5 =(101-1)×9.7
=(12-2) ×5.9 =(4.6-0.6)×2.5 =(101-1)×9.7
=10×5.9 =4×2.5 =100×9.7
=59 =10 =970
⑺、运用减法的运算规律进行简便计算。
1.-0.45-0.55 54.4-4.6-5.6-0.13-0.47
=1.-(0.45+0.55) =54.4-(4.6+5.4) =35.6-(0.13+0.47) =1.-1 =54.4-10 =35.6-0.6
=0. =44.4 =35
⑻、运用除法的运算规律进行简便计算。
4.5÷4÷7.5 14.÷1.25÷ 1.5÷4÷1.25
5.4÷4÷0.45
=4.5÷(4×7.5) =14.÷(1.25×) =1.5÷(4×1.25) =5.4÷(4×0.45)
=4.0 =14.÷10 =1.5÷5 =5.4÷0.1
=0.15 =1.4 =3.7 =30
⑼综合运用各种运算定律进行简算。
2.54+2.46+0.44+0.54 10.7×0.4-6.7×0.4 0..2×1.25
=(2.54+2.46)+(0.44+0.54) =(10.7-6.7)×0.4 =(0.5×4)×(0.×1.25)
=5+1 =4×0.4 =2×1
=6 =1.6 =2
9.7+5.-9.7+4.2 99×0.3+0.3 360÷(1×0.4)
=(9.7-9.7)+(5.+4.2) =(99+1) ×0.3 =360÷1÷0.4 =0+10 =100×0.3 =20÷0. 4
=90 =3 =50
4.×12.5 2.5×1.6×12..2×102
=0.6×(×12.5) =(2.5×0.2)×(×12..2×(100+2)
=0.6×100 =0.5×100 =3.2×100+3.2×2
=60 =20+6.4
=326.4
脱式计算和笔算大全
1. 3/7 × 49/9 - 4/3
2. /9 × 16 + 1/27
3. 12× 5/6 – 2/9 ×3
4. × 5/4 + 1/4
/ – 3/ ÷6
6. 4/7 × /7 × 5/9
7. 5/2 -( 3/2 + 4/5 ). 7/ + ( 1/ + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × /9 - 1/3
11. 7 × /14
12. 6 ×( 1/2 + 2/3 )
13. × 4/5 + × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )。