Multiplication Of Whole Numbers

1.

Which of the following symbols represents multiplication?

A.

+
B.

-
C.

X
D.

÷
E.

=

Correct Answer
C. X

Explanation
The symbol "x" represents multiplication. It is commonly used to indicate the mathematical operation of multiplying two or more numbers together. In equations, "x" is often used as a variable, but in this context, it specifically represents the operation of multiplication.

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1

2.

To multiply means to add up groups of objects. True or False?

A.

True
B.

False

Correct Answer
A. True

Explanation
The given statement is true. Multiplication involves combining or adding groups of objects together. It is a mathematical operation that helps in finding the total quantity when multiple groups of the same size are present.

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1

3.

Solve this multiplication question using a pencil and paper:(no calculators allowed)7 X 6 =

Correct Answer

Explanation
To solve this multiplication question, you can use the traditional method of multiplication. Write down the number 7 and the number 6 below it. Multiply the ones digit of 7 (which is 7) by the ones digit of 6 (which is 6), which gives you 42. Write down the 2 below the line and carry over the 4. Then, multiply the tens digit of 7 (which is 0) by the ones digit of 6 (which is 6), which gives you 0. Write down the 0 below the line. Finally, add the carried over 4 to the 0, which gives you 4. The final answer is 42.

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12

4.

Solve this multiplication question using a pencil and paper:(no calculators allowed)8 X 19 =

Correct Answer

Explanation
To solve this multiplication question, you can use the traditional method of multiplying the digits. Start by multiplying 8 (the ones digit of the first number) by 9 (the ones digit of the second number), which equals 72. Write down the 2 and carry over the 7. Then, multiply 8 by 1 (the tens digit of the second number), which equals 8. Add the carried over 7 to get 15. Write down the 5 and carry over the 1. Finally, multiply 1 (the tens digit of the first number) by 9, which equals 9. Add the carried over 1 to get 10. Write down the 0 and carry over the 1. The final result is 152.

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4

5.

Solve this multiplication question using a pencil and paper:(no calculators allowed)73 X 45 =

Correct Answer

Explanation
To solve this multiplication question using pencil and paper, we can use the traditional method of multiplying each digit of the second number (45) with the first number (73) and then adding the results. Starting from the right, we multiply 3 (from 45) with 73, which gives us 219. Then, we multiply 4 (from 45) with 73, which gives us 292. Finally, we add these two results together, which gives us 5115. Therefore, the correct answer to the multiplication question 73 X 45 is 5115.

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2

6.

Solve this multiplication question using a pencil and paper:(no calculators allowed)62 X 104 =

Correct Answer

Explanation
To solve this multiplication question, we can use the traditional method of multiplying each digit of the first number (62) with each digit of the second number (104). We start by multiplying 2 (from 62) with 4 (from 104), which gives us 8. We write down 8 and carry over nothing. Then, we multiply 2 (from 62) with 0 (from 104), which gives us 0. We write down 0 in the tens place. Next, we multiply 6 (from 62) with 4 (from 104), which gives us 24. We write down 4 in the hundreds place and carry over 2. Finally, we multiply 6 (from 62) with 0 (from 104), which gives us 0. We write down 0 in the thousands place. Adding up all the results, we get the final answer of 6,448.

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7.

Solve this multiplication question using a pencil and paper:(no calculators allowed)370 X 8806 =

Correct Answer