Math 421K Start Up

Order of Operations

100

What is the correct order of operations in mathematics?

BEDMAS

200

Solve: 3 + 5 x 2

13

300

(4+6)÷ 2+3

8

400

Solve: 2³ + 5 x (3-1)

18

500

Solve: 12 - 3 x (2 x 1) + 4²

22

Place Value

100

What is the place value of the digit 7 in the number 5,728?

Hundred

200

In the number 9,405 what digit is in the hundreds place?

4

300

In the number 9,925.3154 what digit is in the hundredth place?

1

400

What is the place value of the digit 6 in the number 46,781?

Thousands

500

 Identify the place value of the digit 2 in the number 15,345. 982.

Thousandth

Equivalent Fractions

100

What is an equivalent fraction for 1/2 ?

Answer will vary

200

Are 2/4 and 3/6 equivalent? Why or why not?

Yes both are reduced to 1/2

300

Simplify (smallest equivalent fraction) 12/16 .

3/4

400

Find an equivalent fraction for 5/8 with a denominator of 32.

20/32

500

If x/10 = 3/5 what is the value of x?

6

Solve for x with Fractions

100

Solve: x/4 = 1/2

2

200

Solve: 9/13 = x/52

36

300

Solve: 5/7 = 12/x

16.8

400

Solve: x/15 = 2/10

3

500

3/5 = x/40

24

Percents

100

Convert 25% to a decimal.

0.25

200

What is 75% as a decimal?

0.75

300

Convert 12.5% to a decimal.

0.125

400

What is 15% of 200?

30

500

What is 25% of 160?

40