65÷7= 37÷5=
46÷9= 35÷4=
16÷4= 32÷8= 7×5= 9×3=
71-7= 85-6= 28+4= 91-60=
1千克-700克=
120-90=
6×9=
4400-3000=
7克+84克=
50+80=
54÷6=
300+900=
40÷8=
42÷7=
20+8÷4=
1600-700=
61-32÷8 45÷9×7 73-(36-28) (37+19)÷7
①913-754=
②▲167+832=
③▲400-198=
④240×3=
⑤507×8=
⑥456×4=
①47÷8=
②52÷6=
③29÷5=
④90-45=
①61÷9=
②276+89=
③197+205=
④701-83=
⑤1000-623=
验算:
⑥136+242-39=
0.99+0.1= 0.35× = 0.75÷75%= 3.14×82=
2.7- = ÷8= 15×6÷15×6= ÷ ×0=