23-08-2015
Mathematics

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How many pairs of whole numbers have a sum of 40

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MeghanAuton1123 MeghanAuton1123

24-08-2015

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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