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Anouchka
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Questions: 10 | Attempts: 283  Settings  We multiply numbers all the time and that is because it's easier to do so than to simply add up large series of numbers. But even though it's the fastest way to reach a result, it can be tricky that's where shortcut trick come in handy. So, how many of these shortcut tricks do you know? Take our quiz and find out.

• 1.

### What's a multiplication?

• A.

It's simplifying.

• B.

It's stretching one's number of opportunities.

• C.

It's a mathematical operation where one number is multiplied by another.

• D.

It's the same as addition but more simple.

C. It's a mathematical operation where one number is multiplied by another.
Explanation
The correct answer is "It's a mathematical operation where one number is multiplied by another." This answer accurately defines multiplication as a mathematical operation that involves multiplying one number by another. It distinguishes multiplication from addition by highlighting that it involves multiplying rather than adding numbers together.

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• 2.

### What would be the first step into multiplying 43 by 63?

• A.

Divide 3 by 9

• B.

Subtract 3 on the first result

• C.

• D.

Multiply 3 by 3

D. Multiply 3 by 3
Explanation
The first step in multiplying 43 by 63 is to multiply 3 by 3.

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• 3.

### What would be the third step into multiplying 59 by 42?

• A.

Add 10 to the result from step 2

• B.

Add the results from step 2 with carry

• C.

Add 10 to the result from step 2 without carry

• D.

Add 5 to the result from step 2 with carry.

B. Add the results from step 2 with carry
Explanation
The third step in multiplying 59 by 42 is to add the results from step 2 with carry. This means that after multiplying the units digit of 59 by 42 and carrying any tens digit to the next step, we add the results from step 2 (the tens digit multiplied by 42) to the result obtained from multiplying the units digit. This step ensures that we correctly calculate the total product of 59 and 42.

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• 4.

### What would be the 4th step into solving 13*13?

• A.

Add left hand side numbers, and write down to the left of 6.

• B.

Multiply left hand side numbers, and write down to the left of 6.

• C.

Substract left hand side numbers, and write down to the left of 6.

• D.

Multiply right hand side numbers, and write down to the left of 6.

B. Multiply left hand side numbers, and write down to the left of 6.
• 5.

### What would be the first step into multiplying a number by 9?

• A.

Add 0 to the right end of the number.

• B.

Add 1 to the right end of the number.

• C.

Add 10 to the right end of the number.

• D.

Add 9 to the right end of the number.

A. Add 0 to the right end of the number.
Explanation
To multiply a number by 9, the first step is to add 0 to the right end of the number. This is because multiplying any number by 10 will result in adding a 0 at the end of the number. Since 9 is just one less than 10, adding 0 to the right end of the number will effectively multiply it by 9.

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• 6.

### What would be the second step into the multiplication of a large number by 5?

• A.

Add 0 at the right of the actual number.

• B.

Add 10 at the right of the actual number.

• C.

Add 10 at the left of the actual number.

• D.

Add 5 at the right of the actual number.

B. Add 10 at the right of the actual number.
Explanation
To multiply a large number by 5, the second step is to add 10 at the right of the actual number. This is because multiplying by 5 can be achieved by multiplying by 10 and then dividing by 2. Adding 10 at the right of the number effectively multiplies it by 10, and then dividing by 2 gives the desired result of multiplying by 5.

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• 7.

### What would be the third step into solving 2769*11?

• A.

• B.

• C.

• D.

Explanation
The third step in solving 2769*11 would be to add 7+6+1 and add the carry. This step involves adding the individual digits of the multiplicand (2769) and the multiplier (11) along with any carry from the previous step. This calculation helps to determine the value of the third digit in the final product.

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• 8.

### What's the first step into solving 119* 108?

• A.

Subtract 100 from one of the numbers.

• B.

Subtract 1 from both numbers.

• C.

Subtract 10 from both numbers.

• D.

Subtract 100 from both numbers.

D. Subtract 100 from both numbers.
Explanation
The first step in solving 119 * 108 is to subtract 100 from both numbers. This is because subtracting 100 from both numbers will make the calculation easier and more manageable. By subtracting 100, we can transform the multiplication problem into a simpler one, making it easier to calculate mentally or using traditional multiplication methods.

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• 9.

### How do you solve 87*83?

• A.

By adding the tens of both numbers.

• B.

By adding the unit digits of both numbers.

• C.

• D.

By subtracting the unit digits of both numbers.

B. By adding the unit digits of both numbers.
Explanation
To solve 87*83, you can use the method of adding the unit digits of both numbers. In this case, the unit digit of 87 is 7 and the unit digit of 83 is 3. Adding these two digits gives us 10. This method is used when multiplying two numbers that have a unit digit of 7 and 3, as it simplifies the calculation and gives us the correct answer.

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• 10.

### What would be the first step into multiplying numbers ending with 0?

• A.

Count end thousands from both the numbers.

• B.

Count end tens from both the numbers.

• C.

Count end zeros from both the numbers.

• D.

Count end hundredths from both the numbers. Back to top