399÷7+294
576÷3÷4
273×3÷9
247-830÷5
(519-463)÷7 988+2×56 764-109-91
480÷5=
21×20=
540÷9=
25×14=
6.5-1.7=
69+35=
250×4=
630÷7=
4.6+2.7=
31×11=341
32×11=352
33×11﹣363
34×11=
×11=385