Identities
Activity 1
Product of sums
(x+y)(u+v)=xu+xv+yu+yv
using this
25x12 = (20+5)(10+2) )
= 20x10+20x2+5x10+5x2
= 200+40+50+10
= 300
a) 32x11
b) 55x13
c) 101x202=
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Activity 2
Answers
Answered by
1
Answer:
c) 101×202=20402 b) 55×13=715 a) 32×11=352
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