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脱式计算,能简算就简算.2.6×2.5+2.5×7.47.56+13.8+2.44+5.2(0.08+2.4)×12.537.85-(7.85+6.4)0.36÷[(6.1-4.6)×0.8]1.6×(2.25+10.5÷1.5)

题目详情
脱式计算,能简算就简算.
2.6×2.5+2.5×7.4 7.56+13.8+2.44+5.2(0.08+2.4)×12.5
37.85-(7.85+6.4)0.36÷[(6.1-4.6)×0.8]1.6×(2.25+10.5÷1.5)
脱式计算,能简算就简算.
2.6×2.5+2.5×7.4 7.56+13.8+2.44+5.2(0.08+2.4)×12.5
37.85-(7.85+6.4)0.36÷[(6.1-4.6)×0.8]1.6×(2.25+10.5÷1.5)

2.6×2.5+2.5×7.4 7.56+13.8+2.44+5.2(0.08+2.4)×12.5
37.85-(7.85+6.4)0.36÷[(6.1-4.6)×0.8]1.6×(2.25+10.5÷1.5)
2.6×2.5+2.5×7.4 7.56+13.8+2.44+5.2(0.08+2.4)×12.537.85-(7.85+6.4)0.36÷[(6.1-4.6)×0.8]1.6×(2.25+10.5÷1.5)2.6×2.5+2.5×7.4 7.56+13.8+2.44+5.2(0.08+2.4)×12.52.6×2.5+2.5×7.4 7.56+13.8+2.44+5.2(0.08+2.4)×12.537.85-(7.85+6.4)0.36÷[(6.1-4.6)×0.8]1.6×(2.25+10.5÷1.5)37.85-(7.85+6.4)0.36÷[(6.1-4.6)×0.8]1.6×(2.25+10.5÷1.5)
▼优质解答
答案和解析
(1)2.6×2.5+2.5×7.4
=(2.6+7.4)×2.5
=10×2.5
=25

(2)7.56+13.8+2.44+5.2
=(7.56+2.44)+(13.8+5.2)
=10+19
=29

(3)(0.08+2.4)×12.5
=0.08×12.5+3×0.8×12.5
=1+3×(0.8×12.5)
=1+3×10
=1+30
=31

(4)37.85-(7.85+6.4)
=37.85-7.85-6.4
=30-6.4
=23.6

(5)0.36÷[(6.1-4.6)×0.8]
=0.36÷[1.5×0.8]
=0.36÷1.2
=0.3

(6)1.6×(2.25+10.5÷1.5)
=1.6×(2.25+7)
=1.6×9.25
=4×0.4×9.25
=4×(0.4×9.25)
=4×3.7
=14.8