Math Quiz: Multiplication And Addition!

1. Over the weekend, Tess sold boxes of cookies in her neighborhood. She sold 9 boxes of cookies on Saturday. She sold 3 times as many boxes of cookies on Sunday as she sold on Saturday. How many boxes of cookies did Tess sell on Sunday?

27

10

30

20

Tess sold 9 boxes of cookies on Saturday. The question states that she sold 3 times as many boxes of cookies on Sunday as she sold on Saturday. Therefore, to find out how many boxes she sold on Sunday, we need to multiply the number of boxes sold on Saturday (9) by 3. 9 multiplied by 3 equals 27, so Tess sold 27 boxes of cookies on Sunday.

Explanation

Tess sold 9 boxes of cookies on Saturday. The question states that she sold 3 times as many boxes of cookies on Sunday as she sold on Saturday. Therefore, to find out how many boxes she sold on Sunday, we need to multiply the number of boxes sold on Saturday (9) by 3. 9 multiplied by 3 equals 27, so Tess sold 27 boxes of cookies on Sunday.

2. To water her crops, a farmer used 746 liters of water from a river. In addition, she used 593 liters from a well. In all, how many liters of water did she use?

1340

1339

1430

1437

The farmer used 746 liters of water from the river and 593 liters from the well. To find the total amount of water used, we add these two quantities together: 746 + 593 = 1339. Therefore, the correct answer is 1339 liters.

Explanation

The farmer used 746 liters of water from the river and 593 liters from the well. To find the total amount of water used, we add these two quantities together: 746 + 593 = 1339. Therefore, the correct answer is 1339 liters.

3. Martin makes a fruit smoothie for breakfast every day. This morning, he put 5 strawberries in the smoothie. He also put twice as many mango chunks in the smoothie as strawberries. How many mango chunks did Martin put in the smoothie?

10

5

15

20

Martin put 10 mango chunks in the smoothie. Since he put twice as many mango chunks as strawberries, and he put 5 strawberries, he put 2 * 5 = 10 mango chunks in the smoothie.

Explanation

Martin put 10 mango chunks in the smoothie. Since he put twice as many mango chunks as strawberries, and he put 5 strawberries, he put 2 * 5 = 10 mango chunks in the smoothie.

4. A shipping company delivered 4,580 letters and 5,856 packages. How many items did the company deliver in all?

10,000

10,643

10,436

10,017

The company delivered a total of 4,580 letters and 5,856 packages. To find the total number of items, we add these two numbers together. Therefore, the correct answer is 10,436.

Explanation

The company delivered a total of 4,580 letters and 5,856 packages. To find the total number of items, we add these two numbers together. Therefore, the correct answer is 10,436.

5. 5674 more than in 1287.

6961

6691

8732

6960

The correct answer is 6961 because it is 5674 more than 1287. By adding 5674 to 1287, we get 6961.

Explanation

The correct answer is 6961 because it is 5674 more than 1287. By adding 5674 to 1287, we get 6961.

6. Reggie bought some toys for his new puppy to play with. The puppy played with the rope toy for 5 minutes. The puppy played with the frisbee for 5 times as long as he played with the rope toy. For how many minutes did he play with the frisbee?

30

10

25

15

The puppy played with the rope toy for 5 minutes. According to the information given, the puppy played with the frisbee for 5 times as long as he played with the rope toy. Therefore, if the puppy played with the rope toy for 5 minutes, he played with the frisbee for 5 * 5 = 25 minutes.

Explanation

The puppy played with the rope toy for 5 minutes. According to the information given, the puppy played with the frisbee for 5 times as long as he played with the rope toy. Therefore, if the puppy played with the rope toy for 5 minutes, he played with the frisbee for 5 * 5 = 25 minutes.

7. Multiply 264 by 987 using a suitable strategy.

260,000

602,865

260,568

266,588

To multiply 264 by 987, we can use the standard long multiplication method. We multiply 264 by each digit of 987, starting from the rightmost digit. We get 4 multiplied by 264 equals 1056, 8 multiplied by 264 equals 2112, and 9 multiplied by 264 equals 2376. Then, we add these three products together: 1056 + 2112 + 2376 = 5544. Therefore, the correct answer is 260,568.

Explanation

To multiply 264 by 987, we can use the standard long multiplication method. We multiply 264 by each digit of 987, starting from the rightmost digit. We get 4 multiplied by 264 equals 1056, 8 multiplied by 264 equals 2112, and 9 multiplied by 264 equals 2376. Then, we add these three products together: 1056 + 2112 + 2376 = 5544. Therefore, the correct answer is 260,568.

8. Estimate the product of 54 and 56.

3024

3042

2500

3000

Explanation

9. Estimate the sum of 9708 and 4302.

14023

14000

14010

15000

The correct answer is 14000 because when estimating the sum of 9708 and 4302, we round each number to the nearest thousand. 9708 rounds down to 9000 and 4302 rounds up to 5000. Adding these rounded numbers together gives us 9000 + 5000 = 14000.

Explanation

The correct answer is 14000 because when estimating the sum of 9708 and 4302, we round each number to the nearest thousand. 9708 rounds down to 9000 and 4302 rounds up to 5000. Adding these rounded numbers together gives us 9000 + 5000 = 14000.

10. In the winter, Mr. Murphy's bee hives had 759 worker bees. Now that spring has come, the number of worker bees has grown by 388. About how many worker bees does he have now? Choose a better estimate.

1200

200

1500

1147

Mr. Murphy's bee hives had 759 worker bees in the winter. Now that spring has come, the number of worker bees has grown by 388. To estimate the current number of worker bees, we can round 388 to the nearest hundred, which is 400. Adding 400 to the initial count of 759 gives us a total of 1159 worker bees. The closest option to this estimate is 1200, which is the correct answer.

Explanation

Mr. Murphy's bee hives had 759 worker bees in the winter. Now that spring has come, the number of worker bees has grown by 388. To estimate the current number of worker bees, we can round 388 to the nearest hundred, which is 400. Adding 400 to the initial count of 759 gives us a total of 1159 worker bees. The closest option to this estimate is 1200, which is the correct answer.