TEKS 5.3K Worksheets — Grade 5 Add and subtract positive rational numbers fluently

Aisha is saving money to buy a new bike. She has saved $45 so far. If her bike costs $120, how much more money does Aisha need to save to buy the bike?

1. $75 ✓
2. $60
3. $55
4. $80

Why: To find out how much more money Aisha needs to save, subtract the amount she has saved from the cost of the bike. The calculation is $120 - $45 = $75. Therefore, Aisha needs to save $75 more to buy the bike.

Sofia went to a local market in Texas to buy some ingredients for her family's favorite dinner. She purchased 3/4 pound of brisket and 1/2 pound of sausages. How many pounds of meat did Sofia buy in total?

1. 1 1/4 ✓
2. 1 1/2
3. 1
4. 2

Why: To find the total amount of meat Sofia bought, we need to add the two fractions together. First, we can convert 3/4 to an equivalent fraction with a common denominator. The common denominator for 4 and 2 is 4. We can express 1/2 as 2/4. Now we can add 3/4 + 2/4 = 5/4. This is also equal to 1 1/4. Therefore, the total amount of meat is 1 1/4 pounds.

Aanya is organizing a school fundraiser where she sells fruit from local farms. If she sells 50 apples and 30 oranges, what fraction of the total fruit sold are apples?

1. 5/8 ✓
2. 3/5
3. 5/3
4. 3/8

Why: To find the fraction of the total fruit that are apples, first calculate the total number of fruit sold. Aanya sold 50 apples and 30 oranges, so the total is 50 + 30 = 80 fruit. The fraction of apples sold is then 50 apples out of 80 total fruit, which simplifies to 50/80. When simplified, 50/80 equals 5/8. Therefore, the correct answer is 5/8.

Paola is making tortillas for her family's business in Nacogdoches. She needs 2 1/4 pounds of flour to make a batch of tortillas. If she has 5 1/2 pounds of flour at home, how much flour will she have left after making the tortillas?

1. 3 1/4 ✓
2. 3 1/2
3. 2 1/4
4. 1 1/4

Why: To find out how much flour Paola will have left after making the tortillas, subtract the amount of flour she uses from the amount she has. Start with 5 1/2 pounds of flour and subtract 2 1/4 pounds. First, convert both mixed numbers to improper fractions: 5 1/2 = 11/2 and 2 1/4 = 9/4. Then, find a common denominator, which is 4: 11/2 = 22/4. Now, subtract: 22/4 - 9/4 = 13/4. This can be converted back to a mixed number: 13/4 = 3 1/4. So, Paola will have 3 1/4 pounds of flour left.

Carlos is keeping track of the number of books he reads each month. He read 3 books in January, 5 books in February, and 4 books in March. How many books did Carlos read in total over these three months?

1. 12 ✓
2. 10
3. 15
4. 13

Why: To find the total number of books Carlos read, you add the number of books he read each month: 3 (January) + 5 (February) + 4 (March) = 12. Therefore, the correct answer is 12.

Jose went on a field trip to Padre Island National Seashore with his classmates. He bought 3 slices of pizza for $2.50 each and a soft drink for $1.50. How much did Jose spend in total on food?

1. $8.00
2. $9.00 ✓
3. $8.50
4. $10.50

Why: To find the total amount Jose spent, first calculate the cost of the pizza: 3 slices * $2.50 = $7.50. Then add the cost of the soft drink: $7.50 + $1.50 = $9.00. Therefore, Jose spent a total of $9.00.

Imani has a collection of 45 colorful markers. She decides to give 6 markers to her friend Noah. How many markers does Imani have left after giving the markers to Noah?

1. 39 ✓
2. 45
3. 49
4. 36

Why: To find out how many markers Imani has left, subtract the number of markers she gave away from her total. Imani started with 45 markers and gave away 6 markers. So, 45 - 6 equals 39. Therefore, Imani has 39 markers left.

Diego is collecting donations for a school fundraiser in Fort Worth. He has already collected $45.75 in donations from his friends. If he collects another $28.50 from his family, how much money will Diego have in total for the fundraiser?

1. $74.25 ✓
2. $73.00
3. $67.50
4. $75.00

Why: To find the total amount Diego will have for the fundraiser, you need to add the amount he has already collected to the amount he collects from his family. Start with $45.75 and add $28.50: 45.75 + 28.50 = 74.25. Thus, Diego will have a total of $74.25 for the fundraiser.