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计算下面各题,怎样简便就怎样算.①1.29+3.7+0.71+6.3②19×96+962÷74③19×36-36×9④425÷25+575÷25.
题目详情
计算下面各题,怎样简便就怎样算. ①1.29+3.7+0.71+6.3 ②19×96+962÷74 ③19×36-36×9 ④425÷25+575÷25. |
①1.29+3.7+0.71+6.3
②19×96+962÷74
③19×36-36×9
④425÷25+575÷25.
①1.29+3.7+0.71+6.3
②19×96+962÷74
③19×36-36×9
④425÷25+575÷25.
①1.29+3.7+0.71+6.3
②19×96+962÷74
③19×36-36×9
④425÷25+575÷25.
①1.29+3.7+0.71+6.3
②19×96+962÷74
③19×36-36×9
④425÷25+575÷25.
▼优质解答
答案和解析
①1.29+3.7+0.71+6.3
=(1.29+0.71)+(3.7+6.3),
=2+10,
=12;
②19×96+962÷74
=1824-13,
=1811;
③19×36-36×9
=(19-9)×36,
=10×36,
=360;
④425÷25+575÷25
=(425+575)÷25,
=1000÷25,
=40. ①1.29+3.7+0.71+6.3
=(1.29+0.71)+(3.7+6.3),
=2+10,
=12;
②19×96+962÷74
=1824-13,
=1811;
③19×36-36×9
=(19-9)×36,
=10×36,
=360;
④425÷25+575÷25
=(425+575)÷25,
=1000÷25,
=40. ①1.29+3.7+0.71+6.3
=(1.29+0.71)+(3.7+6.3),
=2+10,
=12;
②19×96+962÷74
=1824-13,
=1811;
③19×36-36×9
=(19-9)×36,
=10×36,
=360;
④425÷25+575÷25
=(425+575)÷25,
=1000÷25,
=40. ①1.29+3.7+0.71+6.3
=(1.29+0.71)+(3.7+6.3),
=2+10,
=12;
②19×96+962÷74
=1824-13,
=1811;
③19×36-36×9
=(19-9)×36,
=10×36,
=360;
④425÷25+575÷25
=(425+575)÷25,
=1000÷25,
=40.
①1.29+3.7+0.71+6.3 =(1.29+0.71)+(3.7+6.3), =2+10, =12; ②19×96+962÷74 =1824-13, =1811; ③19×36-36×9 =(19-9)×36, =10×36, =360; ④425÷25+575÷25 =(425+575)÷25, =1000÷25, =40. |
=(1.29+0.71)+(3.7+6.3),
=2+10,
=12;
②19×96+962÷74
=1824-13,
=1811;
③19×36-36×9
=(19-9)×36,
=10×36,
=360;
④425÷25+575÷25
=(425+575)÷25,
=1000÷25,
=40.
=(1.29+0.71)+(3.7+6.3),
=2+10,
=12;
②19×96+962÷74
=1824-13,
=1811;
③19×36-36×9
=(19-9)×36,
=10×36,
=360;
④425÷25+575÷25
=(425+575)÷25,
=1000÷25,
=40.
=(1.29+0.71)+(3.7+6.3),
=2+10,
=12;
②19×96+962÷74
=1824-13,
=1811;
③19×36-36×9
=(19-9)×36,
=10×36,
=360;
④425÷25+575÷25
=(425+575)÷25,
=1000÷25,
=40.
=(1.29+0.71)+(3.7+6.3),
=2+10,
=12;
②19×96+962÷74
=1824-13,
=1811;
③19×36-36×9
=(19-9)×36,
=10×36,
=360;
④425÷25+575÷25
=(425+575)÷25,
=1000÷25,
=40.
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