六年级脱式计算题带答案
4个回答

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