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五年级分数简便运算

4/7+1/14-1/2 =8/14+1/14-7/14 =2/14 =1/7 5/3-3/8-5/8 =5/3-(3/8+5/8) =5/3-1 =2/3 3/5+3/11+7/5+11 =(3/5+7/5)+11+3/11 =2+11+2/11 =13又2/11 3/4-{5/6-1/3} =3/4-(5/6-2/6) =3/4-1/2 =3/4-2/4 =1/4

5/6+(1/6-3/4) 2/5-4/11+(3/5+4/11) 8/7-1/14-13/14 3/4-5/8+5/6 4/5-(1/6+3/10) 2/3+4/5-3/10 3/7-(9/14-1/2) 2/7+3/8+5/8 3/7+5/6+4/7 3/10+3/4+7/10 2/5-1/6+2/3 4/9+3/4+5/9 7/8+2/7+1/8 1/2+5/6-1/3 8/9-5/9+1/6 3/10+3/4+7/10 5/6+2/5+1/6...

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...

3/4+1/5=4/5 3/4-1/5=11/20 5/6+2/9=19/18 5/6-2/9=11/18 2/3+3/5=19/15 2/3-3/5=1/15 6/7+1/2=19/14 6/7-1/2= 5/14 2/3+1/6=5/6 1/3+1/4=7/12 1/3-1/4=1/12 1/5+1/7=12/35 1/5-1/7=2/35 1/4+1/9=13/36 1/4-1/9=5/36 1/8+1/9=17/72 1/8-1/9=1/72...

17×40=680, 100-63=37, 3.2+1.68=4.88, 2.8×0.4= 1.12 14-7.4=6.6, 1.92÷0.04=48, 0.32×500=160, 0.65+4.35= 5 10-5.4=4.6, 4÷20=0.2, 3.5×200=700, 1.5-0.06=1.44 0.75÷15=0.05, 0.4×0.8=0.32, 4×0.25=1, 0.36+1.54=2 1...

五年级下册数学口算题人教版600道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/...

看在我都看不懂你问的什么的份上,,给个采纳吧。。谢谢。。

答案看多了,抄袭可能会养成习惯 会对以后的学习产生不良的影响,在网上是问不到答案的哈 现在就养成勤于思考的习惯 好好学习,即使自己答案错了至少能加深印象

1+1/5+1/6-1/12-1/1=? 1+1/5+1/6-1/12-1/2=? 1+1/5+1/6-1/12-1/3=? 1+1/5+1/6-1/12-1/4=? 1+1/5+1/6-1/12-1/5=? 1+1/5+1/6-1/12-1/6=? 1+1/5+1/6-1/12-1/7=? 1+1/5+1/6-1/12-1/8=? 1+1/5+1/6-1/12-1/9=? 1+1/5+1/6-1/12-1/10=? 7/8 + ( 1/8 + 1...

1. 5/2 -( 3/2 + 4/5 ) 2. 7/8 + ( 1/8 + 1/9 ) 3. 5/6 + ( 1/2 + 2/3 ) 4. 9/7 - ( 2/7 - 10/21 ) 5. 3/7 + 49/9 + 4/7 6. 8/9 + 15/36 + 3/27 7. 5/2 - ( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9/7 - ( 2/7 - 10/21 ) 10. 1/5...

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