Algebra II : Multiplication and Division

Study concepts, example questions & explanations for Algebra II

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Example Questions

Example Question #121 : Elementary Operations

Multiply:  

Possible Answers:

Correct answer:

Explanation:

Multiply the first number with the ones digit of the second number.

Save this number.

Multiply the first number with the tens digit of the second number.

Add a zero to the end of this number.

Save this number.

Multiply the first number with the hundreds digit of the second number.

Add two zeros at the end of this number.

Take this number and add it with the two saved numbers from the previous calculations.

The answer is:  

Example Question #122 : Elementary Operations

Multiply:  

Possible Answers:

Correct answer:

Explanation:

Multiply the first number with the ones digit of the second number.

Multiply the first number with the tens digit of the second number.

Add a zero to the end of this number.

Add this number with the number from the first calculation.

The answer is:  

Example Question #123 : Elementary Operations

Multiply the numbers:  

Possible Answers:

Correct answer:

Explanation:

Multiply the first number with the ones digit of the second number.

Save this number.

Multiply the first number with the tens digit of the second number.

Add a zero to the end of this number.

Add this number with the saved number.

The answer is:  

Example Question #124 : Elementary Operations

Multiply:  

Possible Answers:

Correct answer:

Explanation:

Multiply the first number with the ones digit of 89.

Multiply the first number with the tens digit of 89.

Add a zero to the end of this number.

Add this number with the first number calculated.

The answer is:  

Example Question #125 : Elementary Operations

Divide the number 360 with 28.

Possible Answers:

Correct answer:

Explanation:

Write the problem as an expression of a fraction.

Rewrite the problem using common factors.

Cancel the common terms in the numerator and denominator.

The answer is:  

Example Question #126 : Elementary Operations

Multiply the two numbers:  

Possible Answers:

Correct answer:

Explanation:

Multiply the first number with the ones digit of the second number.

Multiply the first number with the tens digit of the second number.

Add a zero to the end of this number.

Add this number with the first number.

The answer is:  

Example Question #127 : Elementary Operations

Multiply the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Multiply the first number with the ones digit of the second number.

Save this number.

Notice that the tens and hundreds digits of the second number are zero.

We must add a zero to the end of the number obtained by multiply the first number with the tens digit, two zeros multiplied with the hundreds digit, and so forth.

Multiply the first number with the thousands digit of the second number.

Add three zeros to the end of this number.

Add this number with the first number.

The answer is:  

Example Question #21 : Multiplication And Division

Multiply .

Possible Answers:

Correct answer:

Explanation:

One method to save time computing a problem like this is to multiply 194 by a value close to 999, or thousand, and then subtract a unit of 194.   This is also equivalent to multiplying to the value that is given in the problem.

The answer is:  

Example Question #22 : Multiplication And Division

Multiply:  

Possible Answers:

Correct answer:

Explanation:

Multiply the first number with the ones digit of the second number.

Multiply the first number with the tens digit of the second number.

Add a zero to this number.

Add this with the first number.

The answer is:  

Example Question #23 : Multiplication And Division

Multiply:  

Possible Answers:

Correct answer:

Explanation:

Multiply the first number with the ones digit of the second number.

Multiply the first number with the tens digit of the second number.

Add an extra zero to this number.

Add this number with the first number calculated.

The answer is:  

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