TEKS 3.2C Worksheets — Grade 3 Represent a number on a number line

Dion is at a local market in Waco, Texas. He sees a stand selling oranges. The stand has 56 oranges. If 24 oranges are sold, how many oranges are left at the stand? Use the number line below to help you determine the answer.

1. 32 ✓
2. 24
3. 40
4. 30

Why: To find out how many oranges are left after selling 24, subtract 24 from 56. So, 56 - 24 = 32. This means there are 32 oranges left at the stand.

Juan is visiting the State Fair of Texas in Dallas. He sees a number line that shows the different heights of animals in inches. The line has marks at 30, 40, 50, and 60 inches. If Juan sees a cow that is 45 inches tall, between which two marks does the cow's height fall?

1. 30 and 40
2. 40 and 50 ✓
3. 50 and 60
4. 30 and 60

Why: To determine between which two marks the cow's height of 45 inches falls, we compare this height to the numbers on the number line. The height of 45 inches is greater than 40 inches but less than 50 inches. Therefore, the cow's height is between 40 and 50 inches.

Lucia is organizing a barbecue picnic in Austin, Texas. She has 32 pieces of brisket and wants to serve them in groups of 4. How many groups of brisket can she make?

1. 8 ✓
2. 10
3. 6
4. 7

Why: To find out how many groups of brisket Lucia can make, divide the total number of pieces of brisket by the number of pieces in each group. So, 32 ÷ 4 = 8. Therefore, Lucia can make 8 groups of brisket.

Aaliyah is selling cookies for a fundraiser at her school in Tyler, Texas. She baked a total of 87 cookies to sell. Which interval on the number line best represents the number of cookies Aaliyah baked?

1. 80 and 90 ✓
2. 90 and 100
3. 70 and 80
4. 100 and 110

Why: Aaliyah baked 87 cookies. This number falls between 80 and 90 because 80 is the nearest lower multiple of 10 and 90 is the nearest higher multiple of 10. Therefore, the correct answer is the interval of 80 and 90.

Isabella went to the State Fair of Texas and saw that the number of people at the fair increased from 120 to 150 over the course of the day. What is the value of the number of people at the fair after the increase?

1. 150 ✓
2. 130
3. 140
4. 160

Why: To find out how many people were at the fair after the increase, we look at the final number given, which is 150. Isabella sees that the number of people increased to this amount, so the answer is 150.

Saanvi is organizing a field trip for her class to visit Enchanted Rock in Texas. The park charges $25 for each student and there are 24 students in her class. How much money will Saanvi need in total for the trip?

1. 600 ✓
2. 500
3. 700
4. 750

Why: To find the total cost for the trip, we multiply the number of students by the cost per student. Saanvi has 24 students and each student costs $25. So, 24 * 25 = 600. Therefore, Saanvi needs a total of $600 for the trip.

Gabriela is hiking in Big Bend National Park. She wants to mark her current elevation on a number line. The number line shows elevations from 1,000 feet to 2,000 feet. Gabriela is currently at 1,250 feet. Which interval on the number line does Gabriela's elevation fall between?

1. 1,200 feet and 1,300 feet ✓
2. 1,100 feet and 1,200 feet
3. 1,300 feet and 1,400 feet
4. 1,400 feet and 1,500 feet

Why: Gabriela's elevation of 1,250 feet is between 1,200 feet and 1,300 feet. On the number line, we find that 1,250 is greater than 1,200 but less than 1,300, so the correct interval is 1,200 feet and 1,300 feet.

Skylar's class is going on a field trip to Palo Duro Canyon. They need to bring 37 sandwiches for the trip. If each sandwich is made using 10 slices of bread, how many slices of bread will they need in total?

1. 370 ✓
2. 37
3. 74
4. 400

Why: To find the total number of slices of bread needed, multiply the number of sandwiches (37) by the number of slices of bread per sandwich (10). So, 37 * 10 = 370. Therefore, Skylar's class will need 370 slices of bread.