SWBAT recognize that rules for adding/subtracting rational numbers are the same as for integers
1 point
1
Question 1
1.
Evaluate--Use number lines to calculate, then write either an addition or subtraction equation that matches the number line.
a) 9\frac{1}{2}+(-2\frac{1}{2})
CFS:
#1: Accurately rewrites expression when appropriate
#2: Accurately represents on the number line
1 point
1
Question 2
2.
Evaluate--Use number lines to calculate, then write either an addition or subtraction equation that matches the number line.
b) -8+5\frac{1}{2}
CFS:
#1: Accurately rewrites expression when appropriate
#2: Accurately represents on the number line
1 point
1
Question 3
3.
Evaluate--Use number lines to calculate, then write either an addition or subtraction equation that matches the number line.
c) -1\frac{1}{2}-(-6\frac{1}{2})
CFS:
#1: Accurately rewrites expression when appropriate
#2: Accurately represents on the number line
1 point
1
Question 4
4.
Evaluate--Use number lines to calculate, then write either an addition or subtraction equation that matches the number line.
d) -3\frac{1}{4}-1\frac{3}{4}
CFS:
#1: Accurately rewrites expression when appropriate
#2: Accurately represents on the number line
1 point
1
Question 5
5.
Use an addition equation and a number line to evaluate the expressions.
a. − 0. 75 + 4
1 point
1
Question 6
6.
Use an addition equation and a number line to evaluate the expressions.
b. 7 − (− 0. 9)
1 point
1
Question 7
7.
Use an addition equation and a number line to evaluate the expressions.
1 point
1
Question 8
8.
Use an addition equation and a number line to evaluate the expressions.
MEDIUM Problems. Keep going!
1 point
1
Question 9
9.
Borrowing--Alex gets paid $5 for doing chores around the house. He then owes his friend $7\frac{1}{4} for his order from 5 Guys.
What is the overall change to Alex's money?
CFS:
#1: Accurately rewrites expression when appropriate
#2: Accurately represents on the number line
1 point
1
Question 10
10.
SPICY--Try if you have time.
Represent the expression on a number line to find the answer as a single number.
\frac{1}{2}-(-4\frac{1}{2})-2\frac{1}{4}
4 points
4
Question 11
11.
Drought--Ishmael plans to go fishing in his favorite pond. After one week, the water level drops 2 inches. After a second week, the water level dropped an additional 1\frac{1}{3} inches. Assume that 0 is the original water level.
Model the changes to the pond's water level after both weeks on the number line, then write an addition or subtraction equation.
CFS:
#1: Accurately rewrites expression when appropriate
#2: Accurately represents on the number line
Push yourself on recommended iXL skills or on challenge topics like Algebra 1 if you've been approved by Mr. Hwung