①
②
③
④
⑤
⑥
⑦
⑧
⑨202÷4=
⑩
×4= 16÷ = × = 0.8× =
0.25+ = ×2.4= ÷4= ÷4÷ =
8.1÷0.03=
0.375×16=
=
×24=
1.4×=
÷3=
13÷=
×15= ×2= × = × =
÷ = ÷3= ÷5= ÷ =
÷5=
÷14=
÷7=
÷=
1-0.25= ÷= 0÷×32= -×=
①计算()×17× 12时可以用乘法分配律进行简算:②一个数乘假分数,积一定不小于这个数;③一台电视机先提价 , 再降价 , 则现价与原价一样:④若M×=N÷(M、N均不为0),则M> N。