× =________ | ÷ =________ | ![]() =________ |
3÷ =________ | 10÷ ×8=________ | ×7=________ |
+ =________ | 100× =________ | 8× =________ |
÷ × =________ | + =________ | 0× =________ |
1× =________ | ÷ =________ | 4× ÷4× =________ |
×36=________ | 3÷ =________ | 10÷ =________ |
÷ =________ | × ×3=________ | ×14=________ |
× =________ | ×3=________ | × =________ |
9×(2+ )=________ | 70÷ =________ | 19× =________ |
÷8%=________ | 1÷ =________ | 0÷ × =________. |
,
,2,9,640,
,1,35,
,
,
,0,
,1,
,30,10,18,2,1,4,
,
,1,23,100,
,10,
,0分析:10÷
×8,4×
÷4×
按照从左到右的顺序计算;9×(2+
)运用乘法分配律简算;0÷
×
根据0除以任何不为0的数,以及0乘任何数都得0求解;其它题目根据运算法则直接求解.解答:
× = , | ÷ = , | ![]() =2, |
3÷ =9, | 10÷ ×8=640, | ×7= , |
+ =1, | 100× =35, | 8× = , |
÷ × = , | + = , | 0× =0, |
1× = , | ÷ =1, | 4× ÷4× = , |
×36=30, | 3÷ =10, | 10÷ =18, |
÷ =2, | × ×3=1, | ×14=4, |
× = , | ×3= , | × =1, |
9×(2+ )=23, | 70÷ =100, | 19× = , |
÷8%=10, | 1÷ = , | 0÷ × =0. |
点评:本题考查了基本的分数乘除法运算,计算时要细心,注意把结果化成最简分数.
=________
÷
=________
=________
=________
×7=________
+
=________
=________
=________
÷
×
=________
=________
=________
÷8%=________
=________