StayAhead! Level 405 Sample Worksheet

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Excellent Job! Your score is 100!

Addition

For example: Answer:

For example:

Answer:

1)

2)

Subtraction

3)

4)

Mental Math (Try to solve the following problems without paper and pencil)

For example: 101 + 67 = ?

Break apart 101. 100 + 1 = 101

100 + 67 = 167

167 + 1 = 168

500 - 199 = ?

Add 1 to 199 to make 200, 199 + 1 =200 500 - 200 = 300 300 + 1 = 301 or 500 - 199 = 500 - (200 - 1) = 500 - 200 + 1 = 300 + 1 = 301

Add 1 to 199 to make 200, 199 + 1 =200

500 - 200 = 300

300 + 1 = 301

or 500 - 199 = 500 - (200 - 1) = 500 - 200 + 1 = 300 + 1 = 301

5) 98 + 457 = ?

6) 700 - 202 = ?

Order of Operations

7) 52 + (48 - 32 ) = ?

8) 148 - (46 - 22) = ?

Word Problems.

9) Planet Earth is about 12,756 km in diameter. Planet Venus's diameter is 652 km shorter. How long is Venus's diameter ?

Answer: km

10) There were 5426 people attended Saturday's game, and there were 458 people less attended Sunday's game. How many people attended Sunday's game ?

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