6÷ = | ×36= | ÷ = | × ×30= | × = | ÷2= |
18× = | ( + )×24= | ÷ = | 20×25%= | 0÷ = | × ÷ = |
解:6÷ =14, | ×36=16, | ÷ =1, | × ×30=1, | × = , | ÷2= , |
18× =15, | ( + )×24=31, | ÷ = , | 20×25%=5, | 0÷ =0, | × ÷ = . |
分析:
×
×30,按照从左往右的顺序依次计算得解;(
+
)×24,应用乘法分配律简算;把
×
÷
改写成
×
×3,再运用乘法结合律简算;其它试题按照分数乘除法的法则解答即可.
点评:此题考查看算式直接写得数,根据分数乘除法的计算法则计算即可.
=
×36=
÷
×
=
÷2=
=
=
=
,
,