40×8= 3×600= 800×5= 23×2=
80÷2= 64÷8= 50÷2= 0÷9=
+ = - = - = + =
①506×6=
②190×5=
③6×88=
④367×7=
⑤69÷3=
⑥70÷5=
⑦95÷4=
⑧83÷7=
8kg=g kg=9吨
×7<41 ×5<42
×9<46 73>8×