27
6+5=11
c) 1+9= 10
3 +9= 2
5+8=13
6+7= 23
Chapter 7: Bercise
63
SN 978-38587161
Then, fill in the missing numbers.
a) 9 + 1 = 20
d) 2 + 8 = 10
e) 3+ 7 = 10
b) 6 + 4 = 10
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