Place Value/Writing Expressions
Rounding Decimals
PEMDAS (Order of Operations)
Number Riddles
+/- Decimals
Exponents
100

What is the value of 6 in 456,324?

6,000

100

Round to the nearest tenth: 1.38

1.4

100

Evaluate using PEMDAS.

12 + 45 / 9

17

100

I am a 4 digit number

My worth is 5 x 1,000

My worth is 3 x 100

Only one of the 2s is worth 20

The other is 1/10 as much

5,322

100
Solve 42.3 + 18.6

60.9

100

What is 10

10,000

200

Write an expression based on this statement: The product of 9 and 4 divided by 3.

(9 x 4) / 3     or     9 x 4 / 3

200

Round to the nearest whole number: 46.93

47

200

Evaluate using PEMDAS. 

9 - (3 x 2) + 10

13

200

I am a 5 digit number

My worth is 6 x 10,000

My worth is 4 x 1,000

One of my 7s is worth 70

The other 7 is worth 10 times as much

My other digit is 0

64,770

200

Solve 816.4 - 76.33

740.07

200

2 x 102

200

300

What is the value of 5 in 14.357?

0.05

300

Round to the nearest hundredth: 0.638

0.64

300

Evaluate using PEMDAS.

25 - 3 x 4 + (5 - 2)

16

300

Make the largest number with these numbers

5, 6, 9, 3, 0, 7

976,530

300

Solve 73.12 + 14.9

88.02

300
1,000,000

106

400

Write an expression based on this statement: Double the sum of 5 and 8.

2 x (5 + 8)

400

Round to the nearest whole number: 99.83

100

400

Evaluate using PEMDAS.

( (6 x 5) - 10) + (8 x 7) - 5

71

400

I have 5 digits

My 5 is worth 50,000

My 8 is worth 8 x 1,000

One of my 6s is worth 60

The other 6 is worth 10 times as much

My other digit is 2

58,662

400

Solve 100.3 - 36.4

63.9

400

4 x 105

400,000

500

Write an expression based on this statement: 5 less that 14.

14 - 5
500

Round to the nearest tenths: 168.546

168.5

500

18 รท (3 x 6 - 9) x 3

6

500

I have 5 digits

My 4s are worth 4 x 10,000 and 4 x 10

One of my 3s is worth 3 x 103

The other 3 is worth 1/10 as much

My other digit is 2

43,342

500
Solve $56.49 + $22.38 - $19.91 (Don't forget the unit)

$58.96

500

5 x 3 x 108

1,500,000,000