Question

20道简便运算带答案

Answer 1

4.8×10.1
=4.8×10＋4.8×0.1
=48+0.48
=48.48
4.5×0.99
=4.5×1－4.5×0.01
=4.5－0.045
=4.455
3.4+3.4×99
=3.4×100
=340
187.7×11-187.7
=187.7×10
=1877
12×12/13
=12×13/13－12/13
=12－12/13
= 11又12/13
24×11/23
=11－1－1/23
=9又22/23
6/5-2/7+4/5-5/7
=(6/5+4/5)－（2/7＋5/7）
=2－1
=1

Answer 2

1. 6÷ 3/8 – 3/8 ÷6
=1/6x(3/8-3/8)
=1/6x0
=0

2. 4/7 × 5/9 + 3/7 × 5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9

3. 5/2 -（ 3/2 + 4/5 ）
=5/2-3/2-4/5
=1-4/5
=1/5

4. 6 ×（ 1/2 + 2/3 ）
=6x1/2+6x2/3
=3+4
=7

5. 8 × 4/5 + 8 × 11/5
=8x(4/5+11/5)
=8x3
=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

8. 101 × 1/5 – 1/5 × 21
=(101-21)x1/5
=80x1/5
=16

Answer 3

抖音，记录美好生活🤘🏼🤘🏼

Answer 4

谢谢你👄