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Give an example of mathematics in grade three or six (the third week) in primary school 1
1、23456+34562+45623+56234+62345=2* 1 1 1 1 1+3* 1 1 1 1 1+4* 1 / kloc-0/ 1 1 1+5* 1 1 1 1 1 1+6* 1 1 1 1 1 1 =(2+3+4+5+6)* 1 1 1 1 1=20* 1 1 1 1 1=222220

2、

45678+56784+67845+78456+84567=4* 1 1 1 1 1+5* 1 1 1 1 1+5* 1 1 / kloc-0/ 1 1+7* 1 1 1 1 1 1+8* 1 1 1 1 1 1 =(4+5+6+7+8)* 1 1 1 1 1=30* 1 1 1 1 1=333330

3、

124.68+324.68+524.68+724.68+924.68= 124.68+200+ 124.68+400+ 124.68+600+ 124.68+800+ 124.68= 124.68*5+200+400+600+800= 124.68*5+2000=2623.4

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