11
48
×
4
15
÷
11
48
×
4
15
=1.
×
×
. (判斷對(duì)錯(cuò))
分析:通過觀察,此題可調(diào)整一下運(yùn)算順序,使計(jì)算簡便,原式變?yōu)椋?span id="9thpxv9" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
11
48
÷
11
48
)×(
4
15
×
4
15
),通過計(jì)算,求出結(jié)果,判斷即可.
解答:解:
11
48
×
4
15
÷
11
48
×
4
15

=(
11
48
÷
11
48
)×(
4
15
×
4
15

=1×
16
225

=
16
225

故答案為:×.
點(diǎn)評(píng):此題主要考查分?jǐn)?shù)的四則混合運(yùn)算的順序.
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