Algebraic Expressions

Which expression matches:

The sum of 6 and 5 doubled

• 2 x 6 + 5

• 2 x (6 + 5)

• 6 + (5 x 2)

What step would I do second?

(4 - 2) x 9 + 7 =

• multiplication

• subtraction

• addition

• dividing

(19 - 7) ÷ 4 + 11

• 14

• 0.8

• 15

• 13

What does the (E) in PEMDAS mean?

• experience

• exponents

• examples

• evidence

2 + 7 ⋅ 5

• 37

• 45

• 32

• 23

12 ÷ 3 x 4

What do you do first?

• 3x4

• 12÷4

• 12÷3

True or false:

4x5 and 4∗5 mean the same thing.

• True

• False

What would you solve first?

3 x 48 ÷ (15 - 3)

• 3 x 48

• 48 / 15

• 15 - 3

• 48-12

(3+4) x (3+5)

• 50

• 54

• 56

• 48

Evaluate when a = 15:

2(a - 5) + 2

• 22

• 27

• 14

• 7