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In this part of our blog you will be able to apply all of your math skill and as well all of our sections in our blog to help deal with unit 4: multiplying and dividing negative numbers. This is only a practice test although you can check your grade to fix or reflect on your mistakes. . .
GOOD LUCK ! ! ! :D
Questions and Answers
1.
Multiply:
-71 * -101=
Explanation When multiplying two negative numbers, the result is always positive. In this case, when we multiply -71 and -101, we get a positive result of 7171.
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2.
-120*2=
Explanation The given expression, -120*2, represents the multiplication of -120 by 2. When multiplying a negative number by a positive number, the result is always negative. Therefore, -120 multiplied by 2 equals -240.
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3.
22*-3=
Explanation When multiplying a positive number by a negative number, the product will be negative. In this case, 22 is being multiplied by -3, so the result will be negative. The product of 22 and -3 is -66.
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4.
-66*-40=
5.
Find the value of n.
-22*n = -44
Explanation To find the value of n, we need to solve the equation -22*n = -44. To isolate n, we divide both sides of the equation by -22. This gives us n = -44/-22, which simplifies to n = 2. Therefore, the value of n is 2.
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6.
81/n = -9
7.
n*12 =-144
Explanation The equation n*12 = -144 can be solved by dividing both sides of the equation by 12. This will give us the value of n. When we divide -144 by 12, we get -12. Therefore, the value of n that satisfies the equation is -12.
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8.
Tru and False.
When you multipy two negatives the answer will be negative.
A.
True
B.
False
Correct Answer B. False
Explanation When you multiply two negatives, the answer will be positive.
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9.
When you divide a positive times a negative the answer will be negative.
A.
True
B.
False
Correct Answer A. True
Explanation When you divide a positive number by a negative number, the result will be negative. This is because division is essentially the same as multiplying by the reciprocal, and when you multiply a positive number by a negative number, the result is always negative. Therefore, the answer to the question is true.
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10.
Divide
-121/11=
Correct Answer -11
Explanation The given equation -121 divided by 11 equals -11. When dividing a negative number by a positive number, the result is always negative. Therefore, -121 divided by 11 is -11.
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11.
-21/-3=
Correct Answer 7
Explanation When dividing a negative number by a negative number, the result is positive. In this case, -21 divided by -3 equals 7.
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12.
42/-6 =
Correct Answer -7
Explanation When we divide 42 by -6, we are essentially asking how many times -6 can be subtracted from 42. Since -6 can be subtracted 7 times from 42 (7 x -6 = -42), the answer is -7.
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13.
Solve the problems
5/3*-6/2
Correct Answer -30/6 -5
Explanation The given expression involves the division and multiplication of fractions. To solve it, we first multiply 5/3 by -6/2, which gives us -30/6. This fraction can be simplified to -5 when we divide both the numerator and denominator by 6. Therefore, the correct answer is -30/6, -5.
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14.
-5/2 / -4/6=
Correct Answer 20/12 5/3
Explanation The given expression is a division of two fractions. To divide fractions, we need to multiply the first fraction by the reciprocal of the second fraction. In this case, the reciprocal of -4/6 is -6/4 or -3/2. Therefore, -5/2 divided by -4/6 is equal to -5/2 multiplied by -3/2, which simplifies to 15/4 or 3 3/4. However, none of the given answer options match this result. Therefore, the correct answer is not available.
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15.
-6/11 * 5/8 =
Correct Answer -30/88 -15/44
Explanation The given expression is a multiplication of two fractions. To multiply fractions, we multiply the numerators and denominators separately. In this case, multiplying -6/11 and 5/8 gives us (-6 * 5) / (11 * 8) = -30/88. Therefore, the correct answer is -30/88.
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