小学五年级数学成绩的简单计算题有哪些？

=2/3+1/3+4/5

=1+4/5

=1 4/5

2/7+1/6+5/7+5/6

=2/7+5/7+(1/6+5/6)

=1+1

=2

1-2/9-7/9

=1-(2/9+7/9)

= 1-1

=0

3/5-1/4+2/5-3/4

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

=1-1

=0

2/7x10+5/7x10

=(2/7+5/7)x10

=1x10

=10

10-5/2-3/1

= 10- 5+0/2.

=4和1/2

13/20+7/10-3/4

=17/20-15/20

=1/10

4/5+2/3+1/3

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

=4/5+1

=1 4/5

2/7x10+5/7x10

=(2/7+5/7)X10

=1X10

=10

6-2/7-5/7

=6-(2/7+5/7)

=6-1

=5