Equivalent Expressions Review

Front

What is the prime factorization of 110?

Back

2 ⋅ 5 ⋅ 11

Front

A scientist reports that a bacteria culture contains 3⁴ bacteria. How many bacteria is that?

Back

81

Front

Which two expressions are equivalent?

9(6 + x)

9⋅ 6 + 9 ⋅ x

,

x + (8 ⋅ 9)

(x + 8) ⋅ 9

,

8 ⋅ 6 ÷ x

8 ⋅ x ÷ 6

,

6 ⋅ x + 3

6 ⋅ ( x + 3)

Back

9(6 + x)

9⋅ 6 + 9 ⋅ x

Front

24 ÷ ( 4 + 2) - 1 × 10

Back

4 + 2

Front

What does the ( E ) in PEMDAS mean?

Back

exponents

Front

True or false: Addition ALWAYS comes before subtraction.

Back

False

Front

Back

16

Front

65 - 2 ⋅ 7 + 9 ÷ 3

Back

$54

Front

Which two expressions are equivalent? Options: (10 - 6) ÷ y and 10 - (6 ÷ y), 4 + (3 ⋅ y) and (4 + 3) ⋅ y, (18 ÷ y) + 10 and 10 + (y ÷ 18), 12 - (y ⋅ 2) and 12 - (2 ⋅ y)

Back

12 - (y ⋅ 2) and 12 - (2 ⋅ y)

Front

Jay simplified - 3 x (3 + 12 ÷ 3) - 4. For his first step he added 3 + 12 to get 15. What was Jay's error?

Back

He added instead of dividing first