①﹣÷
②(-)×
③×+×
④(-)÷(+)
⑤÷×22
⑥3.5×+6.5÷
①
②
③
④
⑤
⑥
⑴48:72 ⑵2.4:6 ⑶0.15:0.2 ⑷
①97×
② ×58+ ×43-
④17.34-(7.34-2.6)
⑥(5.7×40%+6.3× )÷3
0×5.16= 9.8+2.6= 502-399=
÷4= × = 20×5=