问题
解答题
用简便方法计算
950÷50=
430÷20=
870÷80=
答案
①950÷50
=950÷(10×5)
=950÷10÷5
=95÷5
=19
②430÷20
=430÷(10×2)
=430÷10÷2
=43÷2
=21.5
③870÷80
=870÷(10×8)
=870÷10÷8
=87÷8
=107 8
用简便方法计算
950÷50=
430÷20=
870÷80=
①950÷50
=950÷(10×5)
=950÷10÷5
=95÷5
=19
②430÷20
=430÷(10×2)
=430÷10÷2
=43÷2
=21.5
③870÷80
=870÷(10×8)
=870÷10÷8
=87÷8
=107 8