Question

直接寫得數(shù)． 15× 3 20 =	5 8 - 1 4 =	3.8÷0.01=	1 9 ×81=	0.99×9+0.99=
578+216=	18.25-3.3=	2 5 ÷ 1 10 =	1÷ 3 5 × 5 3 =	2 5 + 3 7 + 3 5 + 4 7 =

Answer 1

考點(diǎn)：分?jǐn)?shù)乘法,分?jǐn)?shù)的加法和減法,分?jǐn)?shù)除法,小數(shù)四則混合運(yùn)算

專題：計(jì)算題

分析：根據(jù)整數(shù)加法、小數(shù)乘法、小數(shù)除法、小數(shù)減法及分?jǐn)?shù)乘法、除法的計(jì)算法則，依次進(jìn)行解答即可．

解答： 解：

15× 3 20 =2.25	5 8 - 1 4 = 3 8	3.8÷0.01=380	1 9 ×81=9	0.99×9+0.99=9.9
578+216=794	18.25-3.3=14.95	2 5 ÷ 1 10 =4	1÷ 3 5 × 5 3 = 25 9	2 5 + 3 7 + 3 5 + 4 7 =2

點(diǎn)評：明確整數(shù)加法、小數(shù)乘法、小數(shù)除法、小數(shù)減法及分?jǐn)?shù)乘法、除法的計(jì)算法則，是解答此題的關(guān)鍵．