1.38﹣0.03=
÷ =
0.28× =
36×25%=
﹣ =
0.72÷0.04=
400÷25÷4=
0.3×2÷0.3×2=
①8×1.25=
②678+206=
③+=
④×7.2=
⑤3.2a﹣a=
⑥2.875+
⑦18.23﹣2.3=
⑧3÷=
⑨633÷91≈
⑩59×42≈
4+0.7x=102
①5.58﹣ +5.42﹣
② ×2.5× ×0.4
③
④
⑤
⑥