TEKS 3.2B Worksheets — Grade 3 Describe the mathematical relationships found in the

Mei is selling cookies at a bake sale in San Antonio. She has 452 chocolate chip cookies and 238 oatmeal cookies. How many cookies does Mei have in total?

1. 690 ✓
2. 674
3. 712
4. 580

Why: To find the total number of cookies Mei has, we need to add the number of chocolate chip cookies and oatmeal cookies together. So, we calculate 452 + 238. This gives us 690 cookies in total. Therefore, the correct answer is 690.

Lucas loves visiting the Hill Country in Texas during springtime to see the bluebonnets. This year, he counted 5,236 bluebonnet flowers in one area and 2,413 in another area. What is the difference in the number of bluebonnet flowers Lucas counted between these two areas?

1. 2,823 ✓
2. 3,143
3. 2,123
4. 2,453

Why: To find the difference between the two areas, subtract the smaller number from the larger number: 5,236 - 2,413 = 2,823. Therefore, the difference in the number of bluebonnet flowers Lucas counted is 2,823.

Emma went to a wildlife observation event at Caddo Lake. She recorded the number of different bird species she saw. The table shows the number of birds in each group: Sparrows - 45, Blue Jays - 25, Cardinals - 38, and Robins - 22. What is the value of the digit in the tens place for the total number of birds Emma saw?

1. 1
2. 2
3. 3 ✓
4. 4

Why: To find the total number of birds Emma saw, we add the numbers: 45 + 25 + 38 + 22. This equals 130. The digit in the tens place of 130 is 3.

Adrian is collecting stamps from different places in Texas. He has 1,245 stamps, and he wants to organize them into pages, with each page holding 100 stamps. How many full pages can Adrian fill with his stamps?

1. 12 ✓
2. 1
3. 24
4. 100

Why: To find out how many full pages Adrian can fill with his 1,245 stamps, we need to divide the total number of stamps by the number of stamps on each page. So, we calculate 1,245 ÷ 100 = 12.45. Since Adrian can only fill full pages, he can fill 12 full pages. Therefore, the correct answer is 12.

Omar is planning a trip to Galveston Bay with his family. They will drive 245 miles to get there. If they have already driven 150 miles, how many more miles do they need to drive to reach Galveston Bay?

1. 95 ✓
2. 125
3. 85
4. 100

Why: To find out how many more miles Omar needs to drive, subtract the distance they have already driven from the total distance. So, 245 miles - 150 miles = 95 miles. Therefore, they need to drive 95 more miles to reach Galveston Bay.

Amara is organizing a bake sale at the San Antonio Stock Show to raise money for her school. She bakes 2 dozen cookies and 3 dozen brownies. How many treats does Amara have in total?

1. 60 ✓
2. 48
3. 36
4. 24

Why: To find the total number of treats, first convert the dozens to individual treats. Amara has 2 dozen cookies, which is 2 * 12 = 24 cookies. She also has 3 dozen brownies, which is 3 * 12 = 36 brownies. Now, add the cookies and brownies together: 24 + 36 = 60. Therefore, Amara has 60 treats in total.

Ricardo is collecting seashells at Padre Island National Seashore. He found 1,234 seashells on his first day and 456 more on his second day. What is the total number of seashells Ricardo found over the two days?

1. 1,690 ✓
2. 1,688
3. 1,678
4. 1,600

Why: To find the total number of seashells Ricardo found, you add the seashells from both days: 1,234 + 456. When you calculate this, you get 1,690. Therefore, the correct answer is 1,690.

David is helping his family bake a pecan pie for a Texas celebration. The recipe calls for 350 grams of pecans. If David adds 125 grams more pecans to the mix, how many grams of pecans does he have in total?

1. 475 grams ✓
2. 500 grams
3. 425 grams
4. 450 grams

Why: To find the total grams of pecans David has, you need to add the amount he started with (350 grams) to the amount he added (125 grams). So, 350 + 125 equals 475 grams. Therefore, the correct answer is 475 grams.