5.5+6=11.5, 8-1.8=6.2, 0.76÷0.4=1.9, 2.5×40=100,
1
3 -
1
5 =
2
15 , 30÷
5
6 =36, 42+58=100 30分:
5
3 小时=
3
10 . 故答案为:11.5,6.2,1.9,100,
2
15 ,36,100,
3
10 .
5.5+6=11.5, 8-1.8=6.2, 0.76÷0.4=1.9, 2.5×40=100,
1
3 -
1
5 =
2
15 , 30÷
5
6 =36, 42+58=100 30分:
5
3 小时=
3
10 . 故答案为:11.5,6.2,1.9,100,
2
15 ,36,100,
3
10 .