题目内容
脱式计算下列各题.
(1)13.7+8.65-9.628
(2)12.8-(4.38+1.614)
(1)13.7+8.65-9.628
(2)12.8-(4.38+1.614)
(1)13.7+8.65-9.628,
=22.35-9.628,
=12.722;
(2)12.8-(4.38+1.614)
=12.8-5.994
=6.806.
=22.35-9.628,
=12.722;
(2)12.8-(4.38+1.614)
=12.8-5.994
=6.806.
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