(元)
56+8=
42-7=
32+5=
43-6=
40+44=
22-7=
3+38=
72-40=
9+21=
30-6=
48+9=
7+67=
25+6=
31-7=
23+7=
63-47= 38+26=
75-46-21= 43+(24+18)=
=( )
5元25角 7米80厘米 4×76×5
1+11×1 56÷716÷2 36÷93×3
4321+500= 13.2-5.2= × = 0.2×1.4=
8÷25%= + = 2.4÷ = ÷ =