①37.6﹣4.87﹣1.13 ②47×2.8+52×2.8+2.8 ③40÷[×(+)]
路程(km)
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250
…
耗油量(L)
5
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25
7.4+2.6= 40÷80= 10-0.95= 2.5×16= 6.3÷0.3=
202-98= 6- = 60×40% =