PRIME/SQUARED
What is the square of the least prime number?
2 squared = 4
John got 20 points yesterday in a game. Today he gets 25 points. Calculate by how many his points change.
New - Old.
25 - 20 = 5
Calculate 8 - 3 X 2
8 - 6 = 2
In the Algebraic expression
3y + 5, which of the numbers is the coefficient?
The 3 is the coefficient
The 5 is a constant.
write in standard form:
3.25 × 103
3250
Calculate 152
225
convert 12 out of 20 to percent.
12/20 = 0.6
0.6 = 60% ( move d.p. two places to the right)
(-6) + 52
- 6 + 25 = 19
If P = -3 , What is the value of 2P + 7
1
Write 3.25 × 10-2 in standard form
0.0325
What are the Prime numbers between 1 and 10 that are also factors of 30?
The Prime Factors of 30 are 2, 3, and 5.
Calculate 5% of 600
5/100 *600
cancel with 100 to get:
5 times 6 = 30
Calculate √196 + 32 - 250
14 + 9 - 1
= 22
If a = -5 , b = 3, What is the value of -4a - 5b + 7?
20 - 15 + 7 = 12
If 361 is written in scientific Notation, What would be the coefficient?
3.61
What is the square root of (32 +42)?
9 + 16 = 25
The square root of 25 is 5.
If Cost = $80
Profit = 20%
Calculate the profit made.
0.2 times $80.00 = $16.00
Evaluate |-6 | - ( -12/4) + 12
6 - 3 + 1 = 3 + 1
What is 4?
If three times a number is 21, What is the value of that number?
7
If 0.00144 is written in scientific Notation is written in scientific Notation, what would be the coefficient?
1.44
(The exponent of 10 will be -3)
Between which two whole numbers does the positive square root of 56 lie?
49 < 56 < 64
so the square root of 56 lies between 7 and 8.
The population of rabbits at a park in Australia increased from 15 to 18 in two months. What was the percentage increase?
18 - 15 = 3
3/15 = 1/5 = 0.2
0.2 = 20%
( -4 + 3 × 8)/( 7 - -3)
-4 +24 = 20
7 - -3 = 10
20/10 = 2
If P2 = 144, What are the two values of P?
√144 = 12 or -12
answer is -12 and +12.
Tell me if this is True or False:
4.9 × 103 < 2.5 × 105
True