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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