Explain how to multiply the following whole numbers 21 x 14

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Step-by-step explanation:

Given

Line up the numbers

Multiply the top number by the bottom number one digit at a time starting with the ones digit left(from right to left right)

Multiply the top number by the bolded digit of the bottom number

Multiply the bold numbers:    1×4=4

Multiply the bold numbers:    2×4=8

Multiply the top number by the bolded digit of the bottom number

Multiply the bold numbers:    1×1=1

Multiply the bold numbers:    2×1=2

Add the rows to get the answer. For simplicity, fill in trailing zeros.

adding portion

Add the digits of the right-most column: 4+0=4

Add the digits of the right-most column: 8+1=9

Add the digits of the right-most column: 0+2=2

Therefore,

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step-by-step explanation: