Question
EXERCISE 9.4Simplify, if possible:1. 2 x 2
Answers
2 × 2 = 4
●● + ●● = ●●●●
●● × ●● = ●●●●
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2 × 2 = 4
●● + ●● = ●●●●
●● × ●● = ●●●●