解下面几道初一的绝对值数学题1.计算(1) |-3|×|6.2|; (2) |-5|+|2.49|;(3) 11/16-|-3/8|; (4) |-2/3|÷|14/3|;2.比较下列各组数的大小(1)-8/9,-9/10; (2)-0.618,-3/5;(3)0,|-8|; (4)-1又 2/7,-1又1/3第2题要计算出过
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![解下面几道初一的绝对值数学题1.计算(1) |-3|×|6.2|; (2) |-5|+|2.49|;(3) 11/16-|-3/8|; (4) |-2/3|÷|14/3|;2.比较下列各组数的大小(1)-8/9,-9/10; (2)-0.618,-3/5;(3)0,|-8|; (4)-1又 2/7,-1又1/3第2题要计算出过](/uploads/image/z/1255660-52-0.jpg?t=%E8%A7%A3%E4%B8%8B%E9%9D%A2%E5%87%A0%E9%81%93%E5%88%9D%E4%B8%80%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%E6%95%B0%E5%AD%A6%E9%A2%981.%E8%AE%A1%E7%AE%97%281%29+%7C-3%7C%C3%97%7C6.2%7C%EF%BC%9B+%282%29+%7C-5%7C%2B%7C2.49%7C%3B%283%29+11%2F16-%7C-3%2F8%7C%EF%BC%9B+%284%29+%7C-2%2F3%7C%C3%B7%7C14%2F3%7C%EF%BC%9B2.%E6%AF%94%E8%BE%83%E4%B8%8B%E5%88%97%E5%90%84%E7%BB%84%E6%95%B0%E7%9A%84%E5%A4%A7%E5%B0%8F%281%29-8%2F9%2C-9%2F10%EF%BC%9B+%282%29-0.618%2C-3%2F5%EF%BC%9B%283%290%2C%7C-8%7C%EF%BC%9B+%284%29-1%E5%8F%88+2%2F7%2C-1%E5%8F%881%2F3%E7%AC%AC2%E9%A2%98%E8%A6%81%E8%AE%A1%E7%AE%97%E5%87%BA%E8%BF%87)
解下面几道初一的绝对值数学题1.计算(1) |-3|×|6.2|; (2) |-5|+|2.49|;(3) 11/16-|-3/8|; (4) |-2/3|÷|14/3|;2.比较下列各组数的大小(1)-8/9,-9/10; (2)-0.618,-3/5;(3)0,|-8|; (4)-1又 2/7,-1又1/3第2题要计算出过
解下面几道初一的绝对值数学题
1.计算
(1) |-3|×|6.2|; (2) |-5|+|2.49|;
(3) 11/16-|-3/8|; (4) |-2/3|÷|14/3|;
2.比较下列各组数的大小
(1)-8/9,-9/10; (2)-0.618,-3/5;
(3)0,|-8|; (4)-1又 2/7,-1又1/3
第2题要计算出过程
解下面几道初一的绝对值数学题1.计算(1) |-3|×|6.2|; (2) |-5|+|2.49|;(3) 11/16-|-3/8|; (4) |-2/3|÷|14/3|;2.比较下列各组数的大小(1)-8/9,-9/10; (2)-0.618,-3/5;(3)0,|-8|; (4)-1又 2/7,-1又1/3第2题要计算出过
1.计算
(1) |-3|×|6.2|
=3×6.2
=18.6
(2) |-5|+|2.49|
=5+2.49
=7.49
(3) 11/16-|-3/8|
=11/16-3/8
=11/16-6/16
=5/16
(4) |-2/3|÷|14/3|
=2/3×3/14
=1/7
2.比较下列各组数的大小
(1)-8/9,-9/10
因为-8/9=-80/90,-9/10=-81/90
又因为-80>-81,所以-80/90>-81/90
所以,8/9>-9/10
(2)-0.618,-3/5
因为-3/5=-0.6,又因为-0.6>-0.618
所以)-0.618<-3/5
(3)0,|-8|
因为|-8|=8,而8>0,所以,0<|-8|
(4)-1又 2/7,-1又1/3
因为-1又 2/7= -9/7=-27/21
-1又1/3= -4/3=-28/21
又因为-27/21>-28/21
所以,-1又 2/7 > -1又1/3
1.计算
(1) |-3|×|6.2|=3×6.2=18.6 (2) |-5|+|2.49|=5+2.49=7.49
(3) 11/16-|-3/8|=11/16-6/16=5/16 (4) |-2/3|÷|14/3|=2/3×3/14=1/7
2.比较下列各组数的大小
(1)-8/9大于-9/10; (2)-0.618小于-3/5;
(3)0小于|-8|; (4)-1又 2/7大于-1又1/3
-3|×|6.2|=18.6 |-5|+|2.49|=7.49;
11/16-|-3/8|=5/16 |-2/3|÷|14/3|=1/7;
(1)18.6 (2)7.49 (3)5/16 (4)1/7
2.< < < <
1、(1) |-3|×|6.2|=18.6; (2) |-5|+|2.49|=7.49;
(3) 11/16-|-3/8|=5/16; (4) |-2/3|÷|14/3|=1/7;
2、(1)-8/9>-9/10; (2)-0.618<-3/5;
(3)0<|-8|; (4)-1又 2/7>-1又1/3
1.(1)18.6 (2)12.45 (3)5/16 (4)1/7 2.> << >
1.计算
(1) |-3|×|6.2|=18.6; (2) |-5|+|2.49|=7.49;
(3) 11/16-|-3/8|=5/16; (4) |-2/3|÷|14/3|=1/7;
2.比较下列各组数的大小
(1)-8/9>-9/10; (2)-0.618<-3/5;
(3)0<|-8|; (4)-1又 2/7>-1又1/3