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.
Apply the concepts of all four operations with rational numbers to solve real-world and mathematical problems.
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Q 1/5
Score 0
What is the sign on the product of a negative number and a positive number?
30
negative
positive
zero
Q 2/5
Score 0
What is the product of (7) ( -3)?
30
21
-10
73
-21
5 questions
Q.
What is the sign on the product of a negative number and a positive number?
1
30 sec
7.NS.2
Q.
What is the product of (7) ( -3)?
2
30 sec
7.NS.2
Q.
Divide -7 by -28
3
30 sec
7.NS.2
Q.
The Football team is going on a trip to see a professional game. Tickets cost $30 each, but tickets are half-price for students and teachers. There are 20 students and 4 teachers going to see the play.
What will be the total ticket cost for the group?
4
30 sec
Q.
Each salt shaker holds 1.5 ounces of pepper .
If a box of pepper contains 10.5 ounces, how many shakers will it fill?
