| 822-199= | 1.87+5.3= | 7÷1.4= | 0.18×10= |
÷4= | 1- = | + = | 2.5×0.4= |
× = | 36×25%= |
解:
| 822-199=623, | 1.87+5.3=7.17, | 7÷1.4=5, | 0.18×10=1.8, |
÷4=0.1, | 1- = , | + = , | 2.5×0.4=1, |
× = , | 36×25%=9. |
故答案为:623,7.17,5,1.8,0.1,
,
,1,
,9.
分析:822-199把199变成200-1来简算;其它题目按照运算法则直接求解.
点评:本题考查了基本的计算,注意小数点的位置.
÷4=
=
+
=
×
=