解:(1)1.75×4+
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÷3,
=7+
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,
=7+0.1,
=7.1;
答:和是7.1.
(2)設(shè)甲數(shù)是x,由題意得:
60%x=120×
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,
0.6x=48,
0.6x÷0.6=48÷0.6,
x=80.
答:甲數(shù)是80.
分析:(1)求和,就要知道兩個(gè)加數(shù)分別是多少.根據(jù)題意,其中一個(gè)加數(shù)是1.75×4,另一個(gè)加數(shù)是
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÷3,由此列式解答即可;
(2)此題要求用方程解答,可設(shè)甲數(shù)是x,那么甲數(shù)的60%為60%x,正好與乙數(shù)的
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相等,又知乙數(shù)為120,由此列出方程60%x=120×
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,解此方程即可.
點(diǎn)評(píng):(1)此題應(yīng)從問題出發(fā),看看要求的是什么,然后從題目中找出解決問題需要的條件,列式解答;
(2)此題考查了學(xué)生列方程解方程的能力.