61-32÷8 45÷9×7 73-(36-28) (37+19)÷7
54÷9=
9×7=
65÷8=
7000﹣2000=
320+500=
60+70=
2600﹣800=
4000﹣700=
31﹣12÷4=
9+2×4=
6×8﹣8=
72÷(3×3)=
40+63÷9 80-(64-8) 9×7-26 6×4÷8
①6×(15﹣8)=
②28×(57﹣50)=
③84﹣50=
④18+29=
⑤(12+38)×9=
⑥7×(50﹣46)=
①12÷6×8
②72-18÷9
③4×(20-17)
④(14+49)÷7
1.2×0.3= ﹣= 32÷53×0=
0.25÷= 1﹣0.09= +20%=