Question

（2010?十堰模擬）

直接寫(xiě)出得數(shù)． 20+0.02=	2.5-0.25=	3- 3 4 =	5 6 × 3 5 =
1 3 - 1 5 =	3 16 × 4 9 =	8-8× 1 4 =	3 8 ×4÷ 3 8 ×4=
3×0.5-0.5×3=	3.2+ 1 10 -3.2+ 1 10 =

Answer 1

分析：根據(jù)四則混合運(yùn)算的運(yùn)算順序和計(jì)算法則進(jìn)行計(jì)算即可．

解答：

解：20+0.02=20.02	2.5-0.25=2.25	3- 3 4 =2 1 4	5 6 × 3 5 = 1 2
1 3 - 1 5 = 2 15	3 16 × 4 9 = 1 12	8-8× 1 4 =6	3 8 ×4÷ 3 8 ×4=16
3×0.5-0.5×3=0	3.2+ 1 10 -3.2+ 1 10 = 1 5

點(diǎn)評(píng)：注意使用定律簡(jiǎn)算與簡(jiǎn)算陷阱．