PCA Winter Math Review

Integers

100

Which is greater?

- 51   or    - 501

- 51

200

-13 x 20 =

-260

300

Solve:

-24 - (-36)

12

400

Positive x Positive... what will the answer be?

Positive, Negative or Zero

Positive

500

5^-2

1/25

Fractions

100

Add:

1/5  + 2/5 =

3/5

200

Simplify!

2/4

1/2

300

The bottom number of a fraction

Denominator

400

2/4 x 3/6 =

6/24 = 1/4

500

Make this whole # into a fraction:

5

5/1

Exponents

100

5²

25

200

5³

Which part is the exponent?  5 or 3?

3

300

3⁴

81

400

-4²

16

500

2³  +  1⁵ =

9

Other Math

100

Some number added to 5 is equal to -11. 

Write as a number sentence.

x + 5 = -11

200

It will be – 12º tonight. The weatherman predicts it will be 25º warmer by noon tomorrow. What will the temperature be by noon tomorrow?

13^o

300

Solve:

Some number added to 5 is equal to -11. Find the number.

-16

400

Ancient Egyptians only used unit fractions (like 1/2 , 1/3 or 1/4. )

For 2/3 they’d write 1/3 + 1/3. 

How might they write 5/8?

1/8 + 1/8 + 1/8 + 1/8 + 1/8

500

When I was twelve my brother was half my age. I’m 40 now, so how old is he?

34

Order of Operations

100

6² − 1

35

200

5 + 4 - 3 + 1

7

300

44 × 5 ÷ (9 + 11)

11

400

9² ÷ (11 − 8)

78

500

(5 + 2)² - 9

40