Number Lines
Who needs rules
3
4
5
100
What addition sentence is modeled?
–5 + (–5) + (–5) = –15
100
Determine whether the sign of the product or quotient is positive or negative.
The quotient of two negative integers
The quotient of two negative integers is positive because there is an even number of negative integers.
100
Calculate each product.
-3 2/3 (-1 3/5)
5 13/15
100
Calculate each product.
–5.3 ⋅ 6.01
–31.853
100
Evaluate the expression for x = -4
-7 1/4 + 3 5/8
200
What multiplication sentence is modeled?
3(–5) = –15
200
Determine whether the sign of the product or quotient is positive or negative.
The product of an integer and its opposite
The product of an integer and its opposite is negative because there is an odd number of negative integers.
200
Calculate each product.
7 3/4 (-2 1/5)
-17 1/20
200
Calculate each product.
−17.43 ⋅ (−15.6)
271.908
200
Evaluate the expression for x = -6
-9 1/2 +4 7/8
300
What division sentence is modeled?
–15 ÷ 3 = –5
300
Determine whether the sign of the product or quotient is positive or negative.
The product of five negative integers
The product of five negative integers is negative because there is an odd number of negative integers.
300
Calculate each product.
3/8 (-5/7)
-15/56
300
Calculate each quotient.
12.512 ÷ (−3.4)
–3.68
300
Determine which decimals are rational numbers and which are non rational
Rational
Non Rational
Rational
Rational
400
Determine each pair of single-digit integers that make each number sentence true.
_____ · _____ = 35
5, 7
–5, –7
400
Determine whether the sign of the product or quotient is positive or negative.
The quotient of a positive integer and –15
The quotient of a positive integer and –15 is negative because there is an odd number of negative integers.
400
Calculate each quotient.
-48/-6
8
400
Calculate each quotient.
−46.28 ÷ 8.9
–5.2
400
Mrs. Singh is making snack packs for her class to eat on their field trip. She estimates that she will need 35 snack packs. The day of the field trip 4 students are absent and Mrs. Singh actually only needs 31 snack packs. Calculate Mrs. Singh’s percent error.
12.9%
500
Determine each pair of single-digit integers that make each number sentence true.
_____ · _____ = –48
6, –8
–6, 8
500
Determine whether the sign of the product or quotient is positive or negative.
The quotient of nine negative integers
The quotient of nine negative integers is negative because there is an odd number of negative integers.
500
Calculate each quotient.
-3 4/5 ÷(-3 1/6)
1 1/5
500
Calculate each quotient.
26.23 ÷ 6.1
4.3
500
Bryce is taking care of his neighbor’s dogs while they are on vacation. Bryce estimates he will need 50 pounds of dog food. He actually needs 58 pounds. Calculate Bryce’s percent error.
13.8%