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kiruha [24]
3 years ago
6

Ex plane how knowing 50 x 4 = 200 helps you find 500 x 400

Mathematics
2 answers:
tamaranim1 [39]3 years ago
8 0
U count how many zeros are in each of the problems then u multiply the whole number and add the zeros to the end

example 500 x 400 = 200000 because 5 x 4 is 20 and 500 and 400 have 2 zeros each so u add 4 zeros to 20 so 200000
bearhunter [10]3 years ago
7 0
Because you do 5 times 4 just like you would with the first one and just bring the zeros down from the 500 and 400
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