总述:本次共解7题。其中
☆算术计算6题
☆整数计算1题
〖1/7算式〗
作业:求算式 9.99999999×9.87654321+9.8765432 的值.
题型:数学计算
解:
9.99999999×9.87654321+9.8765432
=98.765432+9.8765432
=108.641975 答案:9.99999999×9.87654321+9.8765432=108.641975〖2/7整数列竖式计算〗
题型:整数乘法
原题:7777777777777777×3333333333333333 解:
7777777777777777×3333333333333333 =
25925925925925920740740740740741 列竖式计算:
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〖3/7算式〗
作业:求算式 (2×2003+4)÷(2003×2002-2004×2001) 的值.
题型:数学计算
解:
(2×2003+4)÷(2003×2002-2004×2001)
=4010÷(2003×2002-2004×2001)
=4010÷2
=2005 答案:(2×2003+4)÷(2003×2002-2004×2001)=2005〖4/7算式〗
作业:求算式 17+18.7+18.87+18.887+18.8887+18.88887+18.888887 的值.
题型:数学计算
解:
17+18.7+18.87+18.887+18.8887+18.88887+18.888887
=35.7+18.87+18.887+18.8887+18.88887+18.888887
=54.57+18.887+18.8887+18.88887+18.888887
=73.457+18.8887+18.88887+18.888887
=92.3457+18.88887+18.888887
=111.23457+18.888887
=130.123457 答案:17+18.7+18.87+18.887+18.8887+18.88887+18.888887=130.123457〖5/7算式〗
作业:求算式 2008+(4004×4005-2002×2003)÷(2×3004-1) 的值.
题型:数学计算
解:
2008+(4004×4005-2002×2003)÷(2×3004-1)
=2008+12026014÷(2×3004-1)
=2008+12026014÷6007
=2008+2002
=4010 答案:2008+(4004×4005-2002×2003)÷(2×3004-1)=4010〖6/7算式〗
作业:求算式 1+2.7+3.07+4.007+5.0007+6.00007+7.000007 的值.
题型:数学计算
解:
1+2.7+3.07+4.007+5.0007+6.00007+7.000007
=3.7+3.07+4.007+5.0007+6.00007+7.000007
=6.77+4.007+5.0007+6.00007+7.000007
=10.777+5.0007+6.00007+7.000007
=15.7777+6.00007+7.000007
=21.77777+7.000007
=28.777777 答案:1+2.7+3.07+4.007+5.0007+6.00007+7.000007=28.777777〖7/7算式〗
作业:求算式 19÷4+19÷0.4+19÷0.04+19÷0.004+19÷0.0004 的值.
题型:数学计算
解:
19÷4+19÷0.4+19÷0.04+19÷0.004+19÷0.0004
=4.75+19÷0.4+19÷0.04+19÷0.004+19÷0.0004
=4.75+47.5+19÷0.04+19÷0.004+19÷0.0004
=4.75+47.5+475+19÷0.004+19÷0.0004
=4.75+47.5+475+4750+19÷0.0004
=4.75+47.5+475+4750+47500
=52.25+475+4750+47500
=527.25+4750+47500
=5277.25+47500
=52777.25 答案:19÷4+19÷0.4+19÷0.04+19÷0.004+19÷0.0004=52777.25
>>注:本次最多计算 7 道题。
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