G1 U10 L13 SJ
Applied MP
MPs * Embedded MP
Procedural Lesson Grade 1 · Unit 10 · Lesson 13
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MC: 1.OA.1
Today, I will solve “how many fewer?” comparing word problems where the difference is unknown.
Vocabulary
Steps
Compare Difference Unknown – How many fewer word problems: June has 8 toys. Colleen has 12 toys. How many fewer toys does June have than Colleen?
1. Listen carefully to the numbers in the word problem. 2. Use the numbers to write an equation using a symbol or letter to represent the unknown. 3. Solve for the unknown.
12 — 8 = W Unknown Solve for the unknown:
12 — 8 = 4 W=4 This problem can also be solved as a missing addend problem.
8 + W = 12 W=4
Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
/ Directions: Use drawings and equations to solve for the unknown.
1. Elijah has 8 dollars. Caleb has 13 dollars. How many fewer dollars does Elijah have than Caleb? Drawings:
Equation
T= 2. Savannah drew 10 pictures. Peyton drew 4 pictures. How many fewer pictures did Peyton draw than Savannah? Drawings:
Equation
= MP2: What math symbol did you use today? MP6: How do you know your answers are correct? MP7: What steps helped you solve the problems? Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Use drawings and equations to solve for the unknown.
1. Emmett has 12 markers. William has 6 markers. How many fewer markers does William have than Emmett? Drawings:
Equation
= 2. Violet ate 9 crackers. Bella ate 10 crackers. How many fewer crackers did Violet eat than Bella? Drawings:
Equation
Z=
Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Use drawings and equations to solve for the unknown.
1. Max has 12 books. Jorge has 3 books. How many fewer books does Jorge have than Max? Drawings:
Equation
X= 2. There are 14 cherry lollipops and 8 grape lollipops. How many fewer grape lollipops are there than cherry? Drawings:
Equation
= Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Use drawings and equations to solve for the unknown.
3. There are 2 limes and 7 lemons. How many fewer limes are there than lemons? Drawings:
Equation
= 4. Wyatt ate 14 marshmallows. Arianna ate 7 marshmallows. How many fewer marshmallows did Arianna eat than Wyatt? Drawings:
Equation
M= Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Use drawings and equations to solve for the unknown.
5. There are 2 yellow chairs and 8 blue chairs. How many fewer yellow chairs are there than blue chairs? Drawings:
Equation
Y= 6. Can X = 10? If not, solve for the unknown. There are 15 tall trees and 5 short trees. How many fewer short trees are there than tall trees?
X = 10
Yes
Copyright © Swun Math
No
Equation
X=
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Choose numbers to complete the word problem. Fill in all the blanks. Solve for the unknown.
1. Zoe sent
cards. Liam sent
cards did
send than
cards. How many fewer ?
Drawings:
Equation
= 2. Evelyn has
pieces of gum. Mason has
How many fewer pieces of gum did
pieces of gum. have than
? Drawings:
Equation
= Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
*MP3: Do you agree/disagree with what
said?
*MP6: How do you know your answers are correct/reasonable?
Recap today’s lesson with one or more of the following MP questions: MP2: What math symbol did you use today? MP6: How did you know your answers were correct? MP7: What steps helped you solve the problems?
Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
MPs * Embedded MP
Procedural Lesson Grade 1 · Unit 10 · Lesson 13
1
2
3
4
*
*
*
5
6
7
8
*
*
MC: 1.OA.1
Today, I will solve “how many fewer?” comparing word problems where the difference is unknown.
Vocabulary
Steps
Compare Difference Unknown – How many fewer word problems: June has 8 toys. Colleen has 12 toys. How many fewer toys does June have than Colleen?
1. Listen carefully to the numbers in the word problem. 2. Use the numbers to write an equation using a symbol or letter to represent the unknown. 3. Solve for the unknown.
12 — 8 = W Unknown Solve for the unknown:
12 — 8 = 4 W=4 This problem can also be solved as a missing addend problem.
8 + W = 12 W=4
Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
/ Directions: Use drawings and equations to solve for the unknown.
1. Elijah has 8 dollars. Caleb has 13 dollars. How many fewer dollars does Elijah have than Caleb? Drawings:
Equation
T= 2. Savannah drew 10 pictures. Peyton drew 4 pictures. How many fewer pictures did Peyton draw than Savannah? Drawings:
Equation
= MP2: What math symbol did you use today? MP6: How do you know your answers are correct? MP7: What steps helped you solve the problems? Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Use drawings and equations to solve for the unknown.
1. Emmett has 12 markers. William has 6 markers. How many fewer markers does William have than Emmett? Drawings:
Equation
= 2. Violet ate 9 crackers. Bella ate 10 crackers. How many fewer crackers did Violet eat than Bella? Drawings:
Equation
Z=
Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Use drawings and equations to solve for the unknown.
1. Max has 12 books. Jorge has 3 books. How many fewer books does Jorge have than Max? Drawings:
Equation
X= 2. There are 14 cherry lollipops and 8 grape lollipops. How many fewer grape lollipops are there than cherry? Drawings:
Equation
= Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Use drawings and equations to solve for the unknown.
3. There are 2 limes and 7 lemons. How many fewer limes are there than lemons? Drawings:
Equation
= 4. Wyatt ate 14 marshmallows. Arianna ate 7 marshmallows. How many fewer marshmallows did Arianna eat than Wyatt? Drawings:
Equation
M= Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Use drawings and equations to solve for the unknown.
5. There are 2 yellow chairs and 8 blue chairs. How many fewer yellow chairs are there than blue chairs? Drawings:
Equation
Y= 6. Can X = 10? If not, solve for the unknown. There are 15 tall trees and 5 short trees. How many fewer short trees are there than tall trees?
X = 10
Yes
Copyright © Swun Math
No
Equation
X=
Grade 1 Unit 10 Lesson 13 P SJ
Directions: Choose numbers to complete the word problem. Fill in all the blanks. Solve for the unknown.
1. Zoe sent
cards. Liam sent
cards did
send than
cards. How many fewer ?
Drawings:
Equation
= 2. Evelyn has
pieces of gum. Mason has
How many fewer pieces of gum did
pieces of gum. have than
? Drawings:
Equation
= Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
*MP3: Do you agree/disagree with what
said?
*MP6: How do you know your answers are correct/reasonable?
Recap today’s lesson with one or more of the following MP questions: MP2: What math symbol did you use today? MP6: How did you know your answers were correct? MP7: What steps helped you solve the problems?
Copyright © Swun Math
Grade 1 Unit 10 Lesson 13 P SJ
