Extend prior knowledge of operations with positive rational numbers to multiply and to divide all rational numbers. a. Understand that the multiplicative inverse of a number is its reciprocal and their product is equal to one. b. Understand sign rules for multiplying rational numbers. c. Understand sign rules for dividing rational numbers and that a quotient of integers (with a non-zero divisor) is a rational number. d. Apply mathematical properties (e.g., commutative, associative, distributive, or the properties of identity and inverse elements) to multiply and divide rational numbers. e. Understand that some rational numbers can be written as integers and all rational numbers can be written as fractions or decimal numbers that terminate or repeat.
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Q 1/10
Score 0
What is -3/4 multiplied by 2 1/2?
30
10/3
-7/8
-5/4
-15/8
Q 2/10
Score 0
What is 3 1/2 multiplied by -2?
30
-8
-3 1/2
-7
7
10 questions
Q.
What is -3/4 multiplied by 2 1/2?
1
30 sec
Q.
What is 3 1/2 multiplied by -2?
2
30 sec
Q.
What is -0.6 divided by 0.2?
3
30 sec
Q.
What is 2.5 multiplied by 0.4?
4
30 sec
Q.
What is -1/4 divided by -3/5?
5
30 sec
Q.
What is -1/2 divided by 1/4?
6
30 sec
Q.
What is the term for the process of multiplying a number by its reciprocal to get the result as one?
7
30 sec
7.NS.2
Q.
When multiplying or dividing two rational numbers, how does the sign of the result determined?
