题目内容
【题目】直接写出得数.
0.78+0.22= = = 0÷=
3+5%+17%= = 0.43+0.17+0.39= 8.4+=
0.1÷0.01= 1.2×= 32×2.5= =
742﹣299= 101×9.2﹣9.2= = =
【答案】1,1.5,16,0,3.22,0.74,0.99,10,10,0.8,80,4,443,920,0,.
【解析】
试题分析:(1)(7)(9)依据小数四则运算计算方法解答,
(2)(4)(5)(6)(8)(15)(16)依据分数四则运算计算方法解答,
(3)(10)(12)(14)运用乘法分配律解答,
(11)化32=8×4,再运用乘法结合律解答,
(13)依据减法性质解答.
解:0.78+0.22=1, =1.5, =16, 0÷=0,
3+5%+17%=3.22, =0.74, 0.43+0.17+0.39=0.99, 8.4+=10,
0.1÷0.01=10, 1.2×=0.8, 32×2.5=80, =4,
742﹣299=443, 101×9.2﹣9.2=920, =0, =.
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