Kitchen Calculations Worksheet Plus Size Workspace Kitchen Calculations
Multiplying Mixed Numbers with Area Models
Name:
Date:
Chef's Challenge
Draw or complete the area model to represent the mixed number repeated. Then, write the equation and find the total.
1 Patrick's Pancakes
Blueberries
Patrick’s recipe calls for 1 1/2 cups of blueberries. If he wants to triple the recipe, how many cups of blueberries will he need?
Area Model Scaffolding
1
1/2
1
1/2
1
1/2
Equation with unknown:
Total Amount:
cups
2 Maya's Muffins
Honey
Maya's muffin recipe uses 2 1/4 tablespoons of honey. She needs to make 2 batches . How much honey does she need?
Area Model Workspace
Equation with unknown:
Total Amount:
tbsp
3 Sam's Smoothie
Spinach
Sam puts 1 2/3 cups of spinach in every smoothie. If he makes 4 smoothies , how much spinach will he use?
Area Model Workspace
Equation with unknown:
Total Amount:
cups
Kitchen Calculations — Page 2
Chef's Edition
4 Leo's Lemonade
Sugar
A pitcher of lemonade requires 2 1/2 cups of sugar. Leo wants to make 3 pitchers . How much sugar is needed in total?
Extra Large Area Model Workspace
Equation with unknown:
Total Amount:
cups
5 Chloe's Cookies
Chocolate
Chloe uses 3 1/4 cups of chocolate chips per batch. If she makes 2 batches , how many cups will she use?
Extra Large Area Model Workspace
Equation with unknown:
Total Amount:
cups
Chef's Secret Tip
Multiply the whole number by each part of the mixed number, then add them up!
👨🍳
Kitchen Calculations Answer Key Kitchen Calculations: Answer Key
Teacher Reference Guide
Grade 4-5 • Fractions
1
Patrick's Pancakes (Blueberries)
Equation
\( 3 \times 1 \frac{1}{2} = b \)
Process
\( (3 \times 1) + (3 \times \frac{1}{2}) = 3 + 1 \frac{1}{2} \)
Answer
4 1/2 cups
2
Maya's Muffins (Honey)
Equation
\( 2 \times 2 \frac{1}{4} = h \)
Process
\( (2 \times 2) + (2 \times \frac{1}{4}) = 4 \frac{1}{2} \)
Answer
4 1/2 tbsp
3
Sam's Smoothie (Spinach)
Equation
\( 4 \times 1 \frac{2}{3} = s \)
Process
\( (4 \times 1) + (4 \times \frac{2}{3}) = 4 + 2 \frac{2}{3} = 6 \frac{2}{3} \)
Answer
6 2/3 cups
4
Leo's Lemonade (Sugar)
Equation
\( 3 \times 2 \frac{1}{2} = x \)
Process
\( (3 \times 2) + (3 \times \frac{1}{2}) = 6 + 1 \frac{1}{2} = 7 \frac{1}{2} \)
Answer
7 1/2 cups
5
Chloe's Cookies (Chocolate)
Equation
\( 2 \times 3 \frac{1}{4} = c \)
Process
\( (2 \times 3) + (2 \times \frac{1}{4}) = 6 + \frac{1}{2} = 6 \frac{1}{2} \)
Answer
6 1/2 cups
Teaching Tips:
Visual Aid: Encourage students to shade "full" boxes first, then combine the fraction pieces.
Repeated Addition: Reinforce that \( 3 \times 1 \frac{1}{2} \) is conceptually the same as \( 1 \frac{1}{2} + 1 \frac{1}{2} + 1 \frac{1}{2} \).
Improper Fractions: For Problem #3, discuss why \( \frac{8}{3} \) becomes \( 2 \frac{2}{3} \) when adding it back to the whole product.
Kitchen Calculations Worksheet Dual Workspace Kitchen Calculations
Multiplying Mixed Numbers: Models & Math
Name:
Date:
Chef's Challenge
Show your work two ways: use the **area model** to visualize the problem and the **mathematical process** to solve it using the distributive property.
1 Patrick's Pancakes
Blueberries
Patrick’s recipe calls for 1 1/2 cups of blueberries. If he wants to triple the recipe, how many cups of blueberries will he need?
Area Model Scaffolding
1
1/2
1
1/2
1
1/2
Mathematical Process
\( 3 \times 1 \frac{1}{2} = (3 \times 1) + (3 \times \frac{1}{2}) \)
Equation with unknown:
Total Amount:
cups
2 Maya's Muffins
Honey
Maya's muffin recipe uses 2 1/4 tablespoons of honey. She needs to make 2 batches . How much honey does she need?
Area Model Workspace
Mathematical Work
Equation with unknown:
Total Amount:
tbsp
3 Sam's Smoothie
Spinach
Sam puts 1 2/3 cups of spinach in every smoothie. If he makes 4 smoothies , how much spinach will he use?
Area Model Workspace
Mathematical Work
Equation with unknown:
Total Amount:
cups
Kitchen Calculations — Page 2
Chef's Edition
4 Leo's Lemonade
Sugar
A pitcher of lemonade requires 2 1/2 cups of sugar. Leo wants to make 3 pitchers . How much sugar is needed in total?
Area Model Workspace
Mathematical Process
Equation with unknown:
Total Amount:
cups
5 Chloe's Cookies
Chocolate
Chloe uses 3 1/4 cups of chocolate chips per batch. If she makes 2 batches , how many cups will she use?
Area Model Workspace
Mathematical Process
Equation with unknown:
Total Amount:
cups
Chef's Secret Tip
Multiply the whole number by each part of the mixed number, then add them up!
👨🍳
