Question

小学数学题

简便计算
1. 4.36+8.9+10.25=
2. 1-0.99+0.01=
3. 12.35-6.7+4.83=
要简便计算的过程
而且是小学的简便计算 交换法之类的
不是正常的计算

Answer 1

1\4+10+(0.1+8.9)+(0.26+0.25)
14+9+0.51=23.51
2\1-(0.99-0.01)
1-0.98=0.02
3\12.35-(6.7-4.83) 12.35+4.83-6.7
12.35-1.87=10.48 17.21-6.7=10.48
12+4-6+(0.35+0.83-0.7)
10+0.48=10.48

Answer 2

1. 4.36+8.9+10.25
= 4.36+10.25+9-0.1
=14.61+9-0.1
=23.61-0.1
=23.51

2. 1-0.99+0.01
= 0.01+0.01
0.02

3. 12.35-6.7+4.83
=12.35-7+0.3+4.83
=5.35+0.3+4.83
=5.65+4.83
=10.48

Answer 3

4.36+8.9+10.25 1-0.99+0.01 12.35-6.7+4.83
=13.26+10.25 =0.01+0.01 =5.65+4.83
=23.51 =0.02 =10.48

Answer 4

1. 4.36+8.9+10.25
=13.26+10.25
=23.51
2. 1-0.99+0.01
=1-（1-0.01)+0.01
=0.02
3. 12.35-6.7+4.83
=5.65+4.83
=10.48

Answer 5

1) 23.51
2) 0.02
3) 10.48