**1. Which statement is false?**

- 7 pens of 3 cattle is 20 cattle.
- 8 pens of 3 cattle is 24 cattle.
- 3 containers filled with 8 pencils is 24 pencils.
- 3 containers filled with 7 pencils is 21 pencils.

**2. Johnny just spent $4.50 on 18 erasers. How much does one eraser cost?**

- $0.20
- $0.25
- $0.30
- $0.35

**3. Raquel has 36 stamps. She groups the stamps into 9 equal groups. She then adds two more stamps to each group. If she gives 4 stamps to each of her 13 friends, how many stamps will she have left?**

- 0
- 1
- 2
- 3

**4. The numbers 4, 6, and 10 are all factors of which number?**

- 12
- 24
- 60
- 80

**5. Which pattern of numbers describes the number of line segments needed in the shape pattern listed below?**

- 1, 2, 3, 4
- 6, 12, 18, 24
- 6, 10, 14, 18
- 6, 11, 16, 21

**6. Which of the following statements is true?**

- 800 is ten times greater than 8.
- 3000 is ten times greater than 30.
- 70 is ten times greater than 700.
- 900 is ten times greater than 90.

**7. Which of the following is the written form for the number 5,320,080?**

- five million, thirty-two thousand, eighty
- five million, three hundred twenty thousand, eighty
- five million, three hundred twenty thousand, eight
- five thousand, three hundred twenty-eight

**8. Which of the following is 7,859 rounded to the hundreds place?**

- 7,850
- 7,860
- 7,800
- 7,900

**9. Evaluate 452+388.**

- 740
- 840
- 830
- 930

**10. Evaluate 1250-487.**

- 837
- 737
- 763
- 863

## Answers and Explanations

1. A: If there are 7 pens with 3 cattle, then the total number of cattle is found by 7×3=21, not 20. In the other problems, 8×3=24,3×8=24, and 3×7=21.

2. B: The cost of one eraser is found by dividing the total cost by the number of erasers. Since the cost of the erasers is $4.50, and there are 18 erasers, the expression for the cost of the eraser will be $4.50×18=$0.25. The total cost of one eraser is $0.25

3. C: If Raquel had 36 stamps and divided them into 9 groups, there will be 4 stamps per group because 36×9=4. She then adds 2 stamps to each group so that she has 6 stamps per group. Since there are nine groups of six and 9×6=54, she has a total of 54 stamps. If she gives 4 stamps each to 13 friends, she gives away 4×13=52 stamps. This means she has 54-52=2 stamps left over.= 13 r 2, so she gave four stamps to each of her 13 friends and had a remainder of 2

4. C: One number is the factor of another if it will divide it with no remainder. Ten is not a factor of twelve because 12×10=1 remainder 2. Also, ten is not a factor of twenty-four because 24×10=2 remainder 4. Six is not a factor of eighty because 80×6=13 remainder 2. The correct answer is sixty, because 4, 6 and 10 all divide it evenly.

5. D: The first figure had 6 sides. The second figure has 11 sides because 5 sides had to be added to make the next figure. This pattern of adding 5 segments continued, so the answers had to be 6, 11, 16, and 21.

6. D: 90×10=900, so 900 is 10 times greater than 90. 800 is 100 times greater than 8, 3000 is 100 times greater than 30, and 70 is only a tenth of 700. Therefore the only answer is D.

7. B: The value of A is 5,032,080; the value of C is 5,320,008; and the value of D is 5,328. B shows 5,320,080 which is the original number.

8. D: The 8 is in the hundreds place, and because the number to the right of 8 is a five, the 8 must round up to a 9. The remaining numbers change to a 0. Therefore the answer is 7,900.

9. B: Adding the ones place, you get 10, so the one carries to the tens place. 1+8+5=14, so the 4 goes in the tens place and the 1 is carried over the hundreds place. 1+4+3=8, so the 8 goes into the hundreds place. The final answer is 840. 452

+388

840

10. C: To subtract the ones column, a 1 has to be borrowed from the tens column, so the 0 becomes 10 and the 5 becomes a 4. 10-7=3, so the 3 goes in the ones unit. To subtract the tens column, a 1 needs to be borrowed from the 2 in the hundreds column. That 2 becomes 1 and the 4 in the tens column becomes 14. 14-8=6, so the 6 goes in the tens column. Finally the 1 is borrowed from the thousands column so that 1 becomes 0 in the thousands column and the 1 in the hundreds column becomes 11. 11-4=7 so the 7 goes in the hundreds place of the answer. The final answer is 763. 1250

-487

763