分析:(1)(2)根據(jù)小數(shù)加減法的計(jì)算法則進(jìn)行計(jì)算,
(3)(8)根據(jù)四則混合運(yùn)算的運(yùn)算順序進(jìn)行計(jì)算,
(4)根據(jù)乘法分配律進(jìn)行計(jì)算,
(5)根據(jù)分?jǐn)?shù)除法的計(jì)算法則進(jìn)行計(jì)算,
(6)根據(jù)小數(shù)除法的計(jì)算法則進(jìn)行計(jì)算,
(7)根據(jù)分?jǐn)?shù)加法的計(jì)算法則進(jìn)行計(jì)算,
(9)根據(jù)連續(xù)減兩個(gè)數(shù)等于減去這兩個(gè)數(shù)的和進(jìn)行計(jì)算.
解答:
解:(1)0.67+4.5=5.17 |
(2)1-0.52=0.48 |
(3)+5÷+5=30 |
(4)9×+9×=9 |
(5)2÷=16 |
(6)0.32÷4=0.08 |
(7)1+=1 |
(8)16×(-0.25)=0 |
(9)3--=2 |
故答案為:5.17,0.48,30
,9,16,0.08,1
,0,2.
點(diǎn)評(píng):本題主要考查了學(xué)生的計(jì)算能力以及在計(jì)算中能靈活運(yùn)用簡(jiǎn)便算法的能力.