Add & Subtract Integers
Solve: 5 – (–9) =
What is 14?
5+9=14 (keep change change)
Solve: – 5(8) =
What is -40?
negative x positive=negative
As a mixed number, 240% is equal to _____________________.
What is 2 2/5?
Move the decimal point two spaces to the left.
240%=2.4= 2 2/5
What is the value of the expression –15 + 27.82?
What is 12.82?
l27.82l-l15l=12.82
27.82 has the greater absolute value and is positive.
Roger wraps presents at a local gift shop. If it takes 1.4 meters of ribbon to wrap a present, how many presents can he wrap if he has 40 meters of ribbon?
What is 28 presents?
40 divided by 1.4=~28.57
Solve: – 6 – 10 =
What is -16?
-6 + -10= -16 (keep, change, change)
Find the quotient of – 36 divided by 12
What is -3?
negative /positive=negative
Which fraction equals a repeating decimal?
5/12
3/16
11/20
9/50
What is 5/12?
5/12= 0.41666
3/16= 0.1875
11/20= 0.55
9/50=0.18
Which is true when a negative number is subtracted from a positive number?
What is the difference could be negative or positive.
Which shows the rational numbers from greatest to least?
What is 1.25, 1.2, ¾, 50%?
1.25, 1.20,¾ (0.75), 50% (0.50)
In the recent economic recession, Eduardo lost money. His account is -$465 from his original balance. He originally had $465.00 in his account. How much money will he have to deposit in order for it to be back to where the account started?
What is $930?
Evaluate: (–2) (3) (–4)
What is 24?
negative x positive=negative (-2) x 3= -6
negative x negative=positive (-6) x (-4)=24
Four runners are entered into a competition. The first 3 runners had their turns. Their scores are 9.8 seconds, 9.75 seconds, and 9.81 seconds. The fourth runner won the competition. Which of the following must have been the fourth runner’s time?
9.74 seconds
9.82 seconds
9.751 seconds
9.80 seconds
What is 9.74 seconds?
The person with the fastest time wins the race.
Fastest=smallest time
Which expression has the same value as 59.2 – 84.7?
84.7 – 59.2
–84.7 + (–59.2)
59.2 – (– 84.7)
59.2 + (– 84.7)
What is 59.2 + (– 84.7)?
Joseph weighs 140lbs. He goes on a diet for four weeks and loses three pounds per week. After those four weeks, he starts to gain back one pound a week for the next three weeks. What is his final weight after those seven weeks?
What is 131 lbs?
3 lbs per week= -3 x 4=-12
1 lb per week= 1 x 3= 3
140-12+3=
Scientists determined that Antarctica’s average winter temperature was – 34.44° C. The difference between this temperature and Antarctica’s highest recorded temperature was 49.44 degrees. What was Antarctica’s highest recorded temperature?
What is 15° C?
Determine the value of the expression:
– 36 ÷ (– 3) + 2 (27 ÷ 3 × 2)
What is 48?
– 36 ÷ (– 3) + 2 (27 ÷ 3 × 2)
– 36 ÷ (– 3) + 2 (9 × 2)
– 36 ÷ (– 3) + 2 (18)
12 + 2 (18)
12 + 36
48
Which inequality below shows a true statement?
– 4 > – 1
– 4 < – 3
2 < – 5
0 > 3
What is – 4 < – 3?
The initial balance of a savings account was $275.00. After which transactions will the balance of the savings account be the same as the initial balance?
A withdrawal of $232 follow by a deposit of $132
A deposit of $278 followed by a withdrawal of $278
A withdrawal of $115 followed by a deposit of $312
A deposit of $205 followed by a withdrawal of $317
What is a deposit of $278 followed by a withdrawal of $278?
Jackson has a board that is 6 1/2 feet long. He needs a board that is 1/4 of this length. What is the length of the board that Jackson needs?
What is 1 5/8 feet?
6 1/2 x 1/4= 1 5/8
Evaluate: |9 – 5| – |6 – 8| =
What is 2?
Mr. Gotay divided –2 by an integer and his result was between –1 and 0. Which integer could have been the divisor?
What is 4?
-2 ÷ -4 = 8
-2 ÷ -1=2
-2 ÷ 1= -2
-2 ÷ 4= -0.5
Which list shows the fractions in order from least to greatest?
3/10, 1/2, 2/5
1/2, 2/5, 3/10
2/5, 3/10, 1/2
3/10, 2/5, 1/2
What is 3/10, 2/5, 1/2?
What is the value of the expression below?
3/8 + -4/5 + -3/8 + 5/4
What is 9/20?
3/8 + -4/5 + -3/8 + 5/4
0 + -4/5 + 5/4
-16/20 + 25/20
9/20
What number is equivalent to 43/12?
What is 3.583?