①
②
③
④
⑤
⑥
= 0.4+55%= 1.5-= 62.8÷3.14=
8×0.99= 1.05÷0.15= =
92-72= 6-3.7-2.3=
520×20% =
3÷0.1% =
3-=
302+402=
1.21×=
1+0.25×25%=
10÷10%=
×3=
÷1.5=
=
① ×
②×
③()×32
④89×
⑤17+
⑥6×(+)×7
1÷(-)