Algebra 1 : Algebra 1

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #2561 : Algebra 1

\(\displaystyle 12*9\)

Possible Answers:

\(\displaystyle 36\)

\(\displaystyle 58\)

\(\displaystyle 21\)

\(\displaystyle 108\)

\(\displaystyle 98\)

Correct answer:

\(\displaystyle 108\)

Explanation:

Both integers are positive. We just multiply the two numbers. Answer is \(\displaystyle 12\).

 

Example Question #2562 : Algebra 1

\(\displaystyle -3*45\)

Possible Answers:

\(\displaystyle -65\)

\(\displaystyle -125\)

\(\displaystyle 42\)

\(\displaystyle -38\)

\(\displaystyle -135\)

Correct answer:

\(\displaystyle -135\)

Explanation:

When multiplying a negative number and a positive number, our answer is negative. We just multiply normally. Answer is \(\displaystyle -135\).

Example Question #32 : How To Multiply Integers

\(\displaystyle -4*18\)

Possible Answers:

\(\displaystyle 14\)

\(\displaystyle -72\)

\(\displaystyle 22\)

\(\displaystyle -46\)

\(\displaystyle -42\)

Correct answer:

\(\displaystyle -72\)

Explanation:

When multiplying a negative number and a positive number, our answer is negative. We just multiply normally. Answer is \(\displaystyle -72\).

Example Question #33 : How To Multiply Integers

\(\displaystyle -18*0\)

Possible Answers:

\(\displaystyle 0\)

\(\displaystyle 18\)

\(\displaystyle -18\)

\(\displaystyle 8\)

\(\displaystyle 12\)

Correct answer:

\(\displaystyle 0\)

Explanation:

Regardless if the number is positive or negative, anything multipled by zero is always zero. So \(\displaystyle -18*0=0\)

Example Question #103 : Integer Operations

\(\displaystyle -5*-8\)

Possible Answers:

\(\displaystyle -40\)

\(\displaystyle 20\)

\(\displaystyle 58\)

\(\displaystyle 13\)

\(\displaystyle 40\)

Correct answer:

\(\displaystyle 40\)

Explanation:

When multiplying two negative numbers, the answer is positive. Then multiply normally. Answer is \(\displaystyle 40\).

Example Question #104 : Integer Operations

\(\displaystyle -12*-11\)

Possible Answers:

\(\displaystyle -132\)

\(\displaystyle 23\)

\(\displaystyle -112\)

\(\displaystyle 132\)

\(\displaystyle 122\)

Correct answer:

\(\displaystyle 132\)

Explanation:

When multiplying two negative numbers, the answer is positive. Then multiply normally. Answer is \(\displaystyle 132\).

Example Question #105 : Integer Operations

\(\displaystyle -2*5*7\)

Possible Answers:

\(\displaystyle 70\)

\(\displaystyle 10\)

\(\displaystyle -19\)

\(\displaystyle -70\)

\(\displaystyle -40\)

Correct answer:

\(\displaystyle -70\)

Explanation:

When multiplying with more than two integers, we count the number of negative signs. Since there is one, that means our answer is going to be negative. We multiply from left to right. Answer is \(\displaystyle -70\).

Example Question #106 : Integer Operations

\(\displaystyle -3*4*8\)

Possible Answers:

\(\displaystyle -86\)

\(\displaystyle -56\)

\(\displaystyle 66\)

\(\displaystyle -96\)

\(\displaystyle 56\)

Correct answer:

\(\displaystyle -96\)

Explanation:

When multiplying with more than two integers, we count the number of negative signs. Since there is one, that means our answer is going to be negative. We multiply from left to right. Answer is \(\displaystyle -96\).

Example Question #107 : Integer Operations

\(\displaystyle -3*-5*8\)

Possible Answers:

\(\displaystyle -80\)

\(\displaystyle -120\)

\(\displaystyle 80\)

\(\displaystyle 64\)

\(\displaystyle 120\)

Correct answer:

\(\displaystyle 120\)

Explanation:

When multiplying with more than two integers, we count the number of negative signs. Since there are two, that means our answer is going to be positive. We multiply from left to right. Answer is \(\displaystyle 120\).

Example Question #108 : Integer Operations

\(\displaystyle -6*-7*-8\)

Possible Answers:

\(\displaystyle 126\)

\(\displaystyle -336\)

\(\displaystyle 96\)

\(\displaystyle -104\)

\(\displaystyle 336\)

Correct answer:

\(\displaystyle -336\)

Explanation:

When multiplying with more than two integers, we count the number of negative signs. Since there are three, that means our answer is going to be negative. We multiply from left to right. Answer is \(\displaystyle -336\).

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