×7= 100÷ = × = 3÷ = 10÷ =
5× = ×4= 4÷ = ÷ = 12÷ =
① × ﹣ ÷
②1﹣ ÷ ﹣
③( + × )÷
④ ÷[( + )×2]
⑤ ×58+42÷8
⑥36×( + ﹣ )