题目内容
列式计算.
(1)4.8与1.5的和乘它们的差,积是多少?
(2)8个7.3的和与1.25相乘,积是多少?
(1)4.8与1.5的和乘它们的差,积是多少?
(2)8个7.3的和与1.25相乘,积是多少?
(1)(4.8+1.5)×(4.8-1.5)
=6.3×3.3,
=20.79;
答:积是20.79.
(2)7.3×8×1.25
=7.3×(8×1.25),
=7.3×10,
=73;
答:积是73.
=6.3×3.3,
=20.79;
答:积是20.79.
(2)7.3×8×1.25
=7.3×(8×1.25),
=7.3×10,
=73;
答:积是73.
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