Question

六年级数学100道脱式计算带过程带答案 急急急 ！！！

Answer 1

六年级数学脱式计算带过程带答案
急急急
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