Basic Budgeting

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Answer Key & Explanations

Basic Budgeting · Grade 4 · Worksheet 2

1. Emma is planning a birthday party and has a budget of $120. She spends $45 on decorations, $28 on party favors, and $38 on food. How much money does Emma have left in her budget after these purchases? Answer: $9 Solution: Add up all of Emma's expenses. Decorations: $45 Party favors: $28 Food: $38 Total expenses = 45 + 28 + 38 45 + 28 = 73 73 + 38 = 111 Total expenses = $111 Subtract the total expenses from the starting budget.
   Full step-by-step solution

   Step 1: Add up all of Emma's expenses. Decorations: $45 Party favors: $28 Food: $38 Total expenses = 45 + 28 + 38 45 + 28 = 73 73 + 38 = 111 Total expenses = $111 Step 2: Subtract the total expenses from the starting budget. Starting budget: $120 Money left = 120 - 111 120 - 111 = 9 Emma has $9 left in her budget.

2. (156 × 4) ÷ 6 = ? Answer: 104 Solution: First, multiply 156 by 4 156 × 4 = 624 Then, divide the result by 6 624 ÷ 6 = 104 The answer is 104.
   Full step-by-step solution

   Step 1: First, multiply 156 by 4 156 × 4 = 624 Step 2: Then, divide the result by 6 624 ÷ 6 = 104 The answer is 104.

3. Matiu has a part-time job helping at his uncle's market stall. He earns $124 each month. His monthly expenses are $48 for bus fare, $36 for lunch, and $22 for snacks. How much money does Matiu have left from his monthly income after paying all his expenses? Answer: 18 Solution: Add up all of Matiu's expenses. $48 (bus fare) + $36 (lunch) + $22 (snacks). Step 2: $48 + $36 = $84.
   Full step-by-step solution

   Step 1: Add up all of Matiu's expenses. $48 (bus fare) + $36 (lunch) + $22 (snacks). Step 2: $48 + $36 = $84. Step 3: $84 + $22 = $106. Step 4: Subtract the total expenses from his monthly income. $124 - $106 = $18. Matiu has $18 left after his expenses.

4. Isabella is organizing a bake sale to raise money for a new school playground. She earns $127 from selling cookies and $92 from selling cupcakes. She needs to spend $67 on ingredients and $38 on packaging supplies. How much money will Isabella have left after paying for all her expenses? Answer: 114 Solution: Find Isabella's total earnings. She earned $127 from cookies and $92 from cupcakes. $127 + $92 = $219.
   Full step-by-step solution

   Step 1: Find Isabella's total earnings. She earned $127 from cookies and $92 from cupcakes. $127 + $92 = $219. Step 2: Find the total expenses. She needs to spend $67 on ingredients and $38 on packaging. $67 + $38 = $105. Step 3: Subtract the total expenses from the total earnings to find how much she has left. $219 - $105 = $114. Isabella will have $114 left after paying for all her expenses.

5. (48 × 5) ÷ 4 = ? Answer: 60 Solution: First, calculate the multiplication inside the parentheses: 48 × 5 = 240 Now, take the result and divide by 4: 240 ÷ 4 = 60 The final answer is 60.
   Full step-by-step solution

   Step 1: First, calculate the multiplication inside the parentheses: 48 × 5 = 240 Step 2: Now, take the result and divide by 4: 240 ÷ 4 = 60 Step 3: The final answer is 60.

6. Lily is saving money to buy a new tablet that costs $245. She earns $28 each week for tutoring her younger cousin. If she has already saved $133, how many more full weeks does she need to work to have enough money to buy the tablet? Answer: 4 Solution: Tablet cost = $245 Money already saved = $133 Money needed = $245 - $133 = $112 Weekly earnings = $28 Weeks needed = $112 ÷ $28 = 4 4 weeks × $28 = $112 $133 (saved) + $112 (earned) = $245 (tablet cost) The answer is 4 full weeks.
   Full step-by-step solution

   Step 1: Find how much more money Lily needs Tablet cost = $245 Money already saved = $133 Money needed = $245 - $133 = $112 Step 2: Calculate how many weeks are needed Weekly earnings = $28 Weeks needed = $112 ÷ $28 = 4 Step 3: Verify the calculation 4 weeks × $28 = $112 $133 (saved) + $112 (earned) = $245 (tablet cost) The answer is 4 full weeks.

7. (150 + 90) ÷ 6 = ? Answer: 40 Solution: Calculate the sum inside the parentheses: 150 + 90 = 240. Take the result from Step 1 and divide it by 6: 240 ÷ 6. Perform the division: 240 ÷ 6 = 40.
   Full step-by-step solution

   Step 1: Calculate the sum inside the parentheses: 150 + 90 = 240. Step 2: Take the result from Step 1 and divide it by 6: 240 ÷ 6. Step 3: Perform the division: 240 ÷ 6 = 40. The final answer is 40.

8. Carlos earns $156 each week from his after-school job. He spends $38 on snacks and $45 on video games each week. How much money does Carlos have left after paying for snacks and video games? Answer: 73 Solution: $38 (snacks) + $45 (video games) = $83 $156 (earnings) - $83 (total spending) = $73 Carlos has $73 left after paying for snacks and video games.
   Full step-by-step solution

   Step 1: Find the total amount Carlos spends each week $38 (snacks) + $45 (video games) = $83 Step 2: Subtract the total spending from his earnings $156 (earnings) - $83 (total spending) = $73 Carlos has $73 left after paying for snacks and video games.

9. Liam is saving money to buy a new video game that costs $45. He already has $18 saved from his allowance. For his birthday, his grandparents give him $25. How much more money does Liam need to buy the video game? Answer: 2 Solution: Identify the total cost of the video game. The video game costs $45. Find out how much money Liam already has.
   Full step-by-step solution

   Let's go step-by-step. Step 1: Identify the total cost of the video game. The video game costs $45. Step 2: Find out how much money Liam already has. He has $18 from allowance and $25 from his grandparents. So, total money he has = 18 + 25. Step 3: Add the amounts he has. 18 + 25 = 43. So, Liam has $43 in total now. Step 4: Find how much more money he needs. Money needed = Cost of game − Money he has Money needed = 45 − 43. Step 5: Subtract. 45 − 43 = 2. So, Liam needs $2 more to buy the video game.