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Morgarella [4.7K]
3 years ago
13

Record the product. use expanded form to help.4x21=

Mathematics
2 answers:
Luda [366]3 years ago
7 0
8.4 * 10^1 is what I think the answer is 
Vladimir [108]3 years ago
3 0
To use it in expanded form
(4×20)+(4×1)=84
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2 years ago
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3 years ago
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