Add & Subtract Integers
-8 + 12 = ?
4
-6 x 7 = ?
-42
What is the prime factorization of 24?
2³ × 3 (or 2 × 2 × 2 × 3)
2/3 + 1/6 = ?
5/6
2/3 × 9/10 = ?
18/30 (or 3/5 simplified)
√81 = ?
9
-7 - 4 = ?
-11
-4 x (-9) = ?
36
What is the prime factorization of 60?
2² × 3 × 5 (or 2 × 2 × 3 × 5)
3/4 - 5/8 = ?
1/8
-4/5 × 15/8 = ?
-60/40 or -3/2 or -1 1/2
√144 = ?
12
-15 + (-10) = ?
-25
558 ÷ (-9) = ?
-62
What is the prime factorization of 100?
2² × 5² (or 2 × 2 × 5 × 5)
-1.5 + 2.7 = ?
1.2
3/4 ÷ 1/8 = ?
6 or 24/4
Estimate √50 to the nearest whole number.
7 (since √49 = 7 and √64 = 8, and 50 is closer to 49)
20 - (-6) = ?
26
-100 ÷ (-5) = ?
25
Find the prime factorization of 72.
2³ × 3²
-3/5 - (-2/5) = ?
-1/5
-2.5 × 4 = ?
-10
Which of these is irrational? √25, √30, 0.75, 2/3
√30 (The others are rational: √25 = 5, 0.75 = 3/4, and 2/3 are all ratios of integers)
The temperature starts at 5°F and drops by 13°F. What is the final temperature?
-8°F
You have 3 separate debts of $25 each. If you represent debt as a negative number, what is your total debt?
-$75
A number's prime factorization is 2² × 3 × 7. What is the number?
84
A recipe calls for 2 3/4 cups of flour. You have already added 1 1/2 cups. How much more flour do you need?
1 1/4 cups
(-3/8) ÷ (9/16)
-2/3 or -48/72
17 is the square root of what perfect square?
289