Question

6．直接寫出得數(shù)．

0.38+0.06=	1-0.08=	64.2+5.7=	543-27-73=
0.97-0.09=	12.8-9.86=	17.05-4.58=	9800÷25÷4=
3.5+0.6=	5-0.15=	4.35+5.36=	99×66+66=
0.81+0.09=	0÷78=	102×5=	35×25×4=

Answer 1

分析 根據(jù)整數(shù)和小數(shù)加減乘除法運(yùn)算的計(jì)算法則計(jì)算即可求解．注意543-27-73根據(jù)減法的性質(zhì)計(jì)算，9800÷25÷4根據(jù)除法的性質(zhì)計(jì)算，99×66+66根據(jù)乘法分配律計(jì)算，35×25×4根據(jù)乘法結(jié)合律計(jì)算．

解答 解：

0.38+0.06=0.44	1-0.08=0.92	64.2+5.7=69.9	543-27-73=443
0.97-0.09=0.88	12.8-9.86=2.94	17.05-4.58=12.47	9800÷25÷4=98
3.5+0.6=4.1	5-0.15=4.85	4.35+5.36=9.71	99×66+66=6600
0.81+0.09=0.9	0÷78=0	102×5=510	35×25×4=3500

點(diǎn)評(píng) 考查了整數(shù)和小數(shù)加減乘除法運(yùn)算，關(guān)鍵是熟練掌握計(jì)算法則正確進(jìn)行計(jì)算．