142-69=73, 0.56÷8=0.07, 6.4+3
3
5 =10, 1.2×
5
6 =1, 5.4+9=14.4,
0.6×0.6=0.36, 7
1
5 ÷0.8=9, 4
2
3 -4
5
12 =
1
4 , 3
1
5 -
1
6 -
5
6 =2
1
5 ,
3
7 ×
2
5 ×5×7=6.
142-69=73, 0.56÷8=0.07, 6.4+3
3
5 =10, 1.2×
5
6 =1, 5.4+9=14.4,
0.6×0.6=0.36, 7
1
5 ÷0.8=9, 4
2
3 -4
5
12 =
1
4 , 3
1
5 -
1
6 -
5
6 =2
1
5 ,
3
7 ×
2
5 ×5×7=6.