Question

我能直接寫出得數(shù) 23×40=	12×30=	36×8=	25×4=
40-18=	35×20=	78-69=	10+0.53=
120×5=	4+7.8=	124÷4=	6-3.5=
10-3.7=	30×61=	7.4-0.8=	1 8 + 4 8 =
7 10 - 3 10 =	1- 1 6 =	1- 4 9 =	1 5 + 4 5 =

Answer 1

分析：本題根據(jù)小數(shù)、分?jǐn)?shù)、整數(shù)的加法，減法，乘法，除法的運(yùn)算法則計(jì)算即可．

解答：

解：23×40=920	12×30=360	36×8=368	25×4=100
40-18=22	35×20=700	78-69=9	10+0.53=10.53
120×5=600	4+7.8=11.8	124÷4=31	6-3.5=2.5
10-3.7=6.3	30×61=1830	7.4-0.8=6.6	1 8 + 4 8 = 5 8
7 10 - 3 10 = 4 10	1- 1 6 = 5 6	1- 4 9 = 5 9	1 5 + 4 5 =1

點(diǎn)評(píng)：本題主要考查了學(xué)生四則運(yùn)算的計(jì)算能力．注意要認(rèn)真細(xì)心．