题目内容
脱式计算:(怎样简便就怎样计算)
7.8×(3.64÷2.6); 27.8÷2.5÷4.
7.8×(3.64÷2.6); 27.8÷2.5÷4.
(1)7.8×(3.64÷2.6)
=7.8÷2.6×3.64
=3×3.64
=10.92;
(2)27.8÷2.5÷4
=27.8÷(2.5×4)
=27.8÷10
=2.78.
=7.8÷2.6×3.64
=3×3.64
=10.92;
(2)27.8÷2.5÷4
=27.8÷(2.5×4)
=27.8÷10
=2.78.
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