8.88×12.5932÷52+35×932(35+2.4×13)×172011×20092010.-数学
题文
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答案
(1)8.88×12.5, =(8+0.8+0.08)×12.5, =8×12.5+0.8×12.5+0.08×12.5, =100+10+1, =111; (2)
=(
=1×
=
(3)(
=(
=
=
(4)2011×
=(2010+1)× |
题文
|
答案
(1)8.88×12.5, =(8+0.8+0.08)×12.5, =8×12.5+0.8×12.5+0.08×12.5, =100+10+1, =111; (2)
=(
=1×
=
(3)(
=(
=
=
(4)2011×
=(2010+1)× |