六年级下册数学口算题20道

如题所述

5.72-1.84-1.16= 2.4×50= 3500÷70=

25×4÷25×4= 2050-298= 2.64+3.6=

3.14-2= 6.54+2.4+3.46+0.6= 1.89÷100= 0.56+0.4= 90-0.9= (1.9+1.9×0)÷1.9= 121–103= 7.2÷0.8= 1.2×5=

0.9÷3×18= 1-25%-35%= (9/7+12/19)×0= (8/7-1/7)×2= 12×6÷7.2-6= 5/9+4/5+4/9= 5.6-1.6÷4= 7.2÷0.8-1.2×5= 52÷82%×0= 0.3×1.5= 6.8÷17= 42÷60%= 38 +0.625= 36 ÷0.6= 7÷0.35 =

1-25% = 12÷7= 0.5÷14 = 279+98= 279+102=

2. 脱式计算(能简算要简算)12%

6/7+2/15+1/7+ 13/15 19/21+5/7-3/14

2/3+5/9-2/3+5/9

8/9-(1/4-1/9)- 3/4

一、 计算(60%)
1、 口算(14%)
3.5×2= 4.8÷1.2= 8-7.5= 1.4×0.5= 1- =
10.5-3.5= 0.6+2.5= 15×0.6= 1÷0.4= + =
4÷20= 1.25×0.8= 0.32×10= 2.5-2.5×0.4=
2、 怎样算简便就怎样算(12%)
12.5×3.2×0.25 4.56×101-4.56 (0.2+7.63÷0.7)×0.1

3、 解方程(12%)
0.12χ+1.8×0.9=7.2 (9-5χ)×0.3=1.02 6.4χ-χ=28+4.4

17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
温馨提示:答案为网友推荐,仅供参考
第1个回答  2010-06-13
5.72-1.84-1.16= 2.4×50= 3500÷70=

25×4÷25×4= 2050-298= 2.64+3.6=

3.14-2= 6.54+2.4+3.46+0.6= 1.89÷100= 0.56+0.4= 90-0.9= (1.9+1.9×0)÷1.9= 121–103= 7.2÷0.8= 1.2×5=

0.9÷3×18= 1-25%-35%= (9/7+12/19)×0= (8/7-1/7)×2= 12×6÷7.2-6= 5/9+4/5+4/9= 5.6-1.6÷4= 7.2÷0.8-1.2×5= 52÷82%×0= 0.3×1.5= 6.8÷17= 42÷60%= 38 +0.625= 36 ÷0.6= 7÷0.35 =

1-25% = 12÷7= 0.5÷14 = 279+98= 279+102=

2. 脱式计算(能简算要简算)12%

6/7+2/15+1/7+ 13/15 19/21+5/7-3/14

2/3+5/9-2/3+5/9

8/9-(1/4-1/9)- 3/4

一、 计算(60%)
1、 口算(14%)
3.5×2= 4.8÷1.2= 8-7.5= 1.4×0.5= 1- =
10.5-3.5= 0.6+2.5= 15×0.6= 1÷0.4= + =
4÷20= 1.25×0.8= 0.32×10= 2.5-2.5×0.4=
2、 怎样算简便就怎样算(12%)
12.5×3.2×0.25 4.56×101-4.56 (0.2+7.63÷0.7)×0.1

3、 解方程(12%)
0.12χ+1.8×0.9=7.2 (9-5χ)×0.3=1.02 6.4χ-χ=28+4.4

17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
第2个回答  推荐于2017-09-16
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3本回答被提问者采纳
第3个回答  2020-03-21
1.3/7×49/9-4/3
2.8/9×15/36+1/27
3.12×5/6–2/9×3
4.8×5/4+1/4
5.6÷3/8–3/8÷6
6.4/7×5/9+3/7×5/9
7.5/2-(3/2+4/5)
8.7/8+(1/8+1/9)
9.9×5/6+5/6
10.3/4×8/9-1/3
11.7×5/49+3/14
12.6×(1/2+2/3)
13.8×4/5+8×11/5
14.31×5/6–5/6
15.9/7-(2/7–10/21)
16.5/9×18–14×2/7
17.4/5×25/16+2/3×3/4
18.14×8/7–5/6×12/15
19.17/32–3/4×9/24
20.3×2/9+1/3

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