Vocabulary
The answer to an addition problem
7 + (-3)
4
6xx(-3)
-18
3+6xx2
15
It was 6°C in the morning. By the afternoon, the temperature dropped by 4°C. What is the afternoon temperature?
2°C
Difference
The answer to a subtraction problem
-5-2
-7
-8-:2
-4
(8-5)+4
7
A football team gained 15 yards on one play and then lost 22 yards on the next. What is their net yardage?
–7 yards
Product
The answer to a multiplication problem
1/2 + 3/2
2
2/3xx3/4
1/2
12-:(2xx3)
2
Sara ate 2/3 of a pizza for lunch and her brother ate 1/6 of the same pizza. How much of the pizza did they eat altogether?
5/6
Quotient
The answer to a division problem
-4/3+1/6
-7/6
-5/6 -:1/2
-5/3
5+(12-:3)
9
A runner completed 7/8 of a mile on Monday and 3/8 of a mile on Tuesday. How much farther did the runner go on Monday than Tuesday?
1/2 mile farther
Integer
All natural numbers and their opposites.
(ex. ...,-3, -2, 1, 1, 2, 3,...)
3.75+(-5.6)
-1.85
2.5xx(-0.4)
-1
(10-4)xx(3+2)
35
A pack of gum costs $1.25. If Maya buys 4 packs, how much does she spend?
$5
Rational Number
A number that can be written as a fraction.
-7/3+7/5
-14/15
-3/2-:0.75
-2
18-:(3xx(-2+4)+6)
3/2
A rope is 6.4 meters long. If it is cut into 2 equal pieces, how long is each piece?
3.2 meters
Reciprocal
The flipped version of a fraction
(ex. reciprocal of 3/4 is 4/3)
-7.25-(-5.18)
-2.07
-7/5xx-3/4
21/20
((4+6)xx(7-2)) /(2xx(5-3)
25/2
The temperature was -2.5°F in the morning. During the day, it rose by 7.2°F, then dropped by 4.8°F, and finally doubled overnight. What was the final temperature?
-0.2°F