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nana68 nana68
  • 23-08-2015
  • Mathematics
Answered

How many pairs of whole numbers have a sum of 40

Verified Answer :

MeghanAuton1123
MeghanAuton1123 MeghanAuton1123
  • 23-08-2015

1)1+39=40
2)2+38= 40
3)3+37=40 
4)4+36= 40
5)5+35=40 
6)6+34=40
7)7+33=40
8)8+32=40
9)9+31= 40
10)10+30=40
11)11+29=40
12)12+28=40 
13)13+27= 40 
14)14+26=40 
15)15+25=40 
16)16+ 24= 40 
17)17+23= 40 
18)8+ 22= 40 
19)19+21=40 
20) 20+20= 40 
20 pairs! 

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