GEMS & Parts of an Expression

GEMS- words

100

Give the correct order of operations.

Groupings, Exponents, Multiplication OR Division, Subtraction OR Addition

200

Why is it important to know GEMS in math?

So everyone can solve every problem the same (correct) way.

300

What does the G in GEMS stand for?

grouping symbols

400

Tell what 5 ³ really means.

It means 5 x 5 x 5

500

What does the E in GEMS stand for?

exponents

Fix my Mistake

100

9 - 3 x 2=12

Correct answer is 3. Do x then -, not - then x.

200

5 ² + 1=11

5 ² = 25, not 10. Correct Answer is 26.

300

3² - 6 = 0

3 ² = 9, not 6. Correct answer is 3

400

4 + 5 + 7 - 3 x 2 = 26

You need to follow PEMDAS and do x first. Correct answer is 10.

500

10 ³ = 30

10 ³ = 10 x 10 x10, which is 1000, not 30.

Solve

100

3 + 4 x 5

23

200

7 + (2 x 4) - 1

14

300

56 ÷ (4+4) + 3²

16

400

20 – (5+3) x 2 + 4

8

500

(5 x 4) – 6 ÷ 2 + 9

26

Solve

100

14 - 2 x 7

0

200

49 ÷ (3+4) + 5²

32

300

5 + 14 ÷ 2 × 5

40

400

(4-1)² + (5+ 1)²

45

500

1² + 2² x 3² - 4²

21

Parts of An Expression

100

What is the coefficient of this expression?

5x + 3

5

200

What is the variable of this expression?

6f - 4

f

300

What are the variables of this expression?

3z + xy -5

z, x, y

400

What is the coefficient of 2nd term in this expression?

3x + 9y +7w

9

500

What variable do these expressions have in common?

3a + 5x + 10z  - 2c + 4x

10x  + 3q  - 67a + 2b - 3c

2n + 78b - 8u + 11a - 45k

A