84×58=
10-2.2=
832 +4=
★28× 77=
7.9+8.3=
★936÷5=
5米4.9米 418÷760 272÷3272÷4
30×9= 540÷9= 2.8+4.5= + =
- = 7.7-3.3= 3×250= 14×15=