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21x40=840, so 21x 42 = Use mental math

21x40=840, so 21x 42 = Use mental math
asked 3.1k views
4 votes
21x40=840, so 21x 42 =

Use mental math

asked
User Prabodh M
by
8.7k points

1 Answer

2 votes

Answer:

882

Explanation:

mental math right ;)

answered
User Micael Levi
by
7.6k points
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