①36+47=
②45+19+27=
③75-28-19=
④61-37=
⑤70-37+28=
⑥38-(50-47)=
4×4=
2×5=
4×5=
8÷8=
24÷6=
20÷5=
20÷4=
5×6=
30-6=
30÷5=
18-3=
36÷6=
16÷4=
5+18=
4×3=
12÷3=
2×3+4=
74-33-5=
56+28+8=
16+35+9=
7×2=
7×7=
7×5=
3×7=
6×7=
6×8=
9×9=
4×8=
24÷8=
4×9=
8×5=
5×6=
9×2=
8×8=
6×9=
7×9=
①88÷9 =
②47÷5=
③35÷7=
④40÷6=
①38+16+42=
②85-14-27=
③99-63-36=
④80-(60-35)=
①37+28=
②84-56=
③60-48=
④47+(28-19)=
⑤92-36-29=
⑥73-(45-17)=
- = × = 80÷10%= 42×3.14=
30%+0.45= 3.6÷0.18= 2- = 6- - =