Solving 2-Digit Subtraction Word Problems

This lesson focuses on writing equations to solve two-digit subtraction word problems. It introduces subtraction clue words and provides several examples, such as cows in a pasture, bees in a hive, pages read by Bob and Dave, muffins in a box, and lockers in a hallway. Each example demonstrates how to identify the operation needed, write an equation, and solve for the unknown. The lesson concludes with a note on preparing students for algebra and a preview of the next lesson on multi-step word problems.

What is the purpose of identifying subtraction clue words in a word problem?

• To find the conclusion of the story

• To identify the operation needed to solve the problem

• To decide which characters are involved

• To determine the story's theme

Tags

CCSS.1.OA.A.1

In the example with 54 cows, how many cows remained in the pasture after 21 went into the barn?

• 33 cows

• 75 cows

• 54 cows

• 21 cows

Tags

CCSS.2.OA.A.1

How can we check if our subtraction is correct?

• By multiplying the minuend and the subtrahend

• By subtracting the difference from the subtrahend

• By dividing the minuend by the subtrahend

• By adding the difference to the subtrahend

Tags

CCSS.1.OA.A.1

Why do we use a box to represent an unknown number in equations?

• To prepare students for using variables in algebra

• To make the equation look complete

• Because it's easier than writing numbers

• To avoid solving the equation

Tags

CCSS.6.EE.B.6

What is the result of 35 bees minus 17 bees that flew away?

• 18 bees

• 35 bees

• 52 bees

• 17 bees

Tags

CCSS.2.OA.A.1

How many more pages did Bob read than Dave if Bob read 47 pages and Dave read 34?

• 47 pages

• 34 pages

• 81 pages

• 13 pages

Tags

CCSS.2.OA.A.1

How many muffins were in the box originally if Alicia took out 26 and 16 were left?

• 16 muffins

• 10 muffins

• 42 muffins

• 26 muffins

Tags

CCSS.2.OA.A.1

What does it mean if fewer than 10 lockers are empty?

• Less than 10 lockers are empty

• All lockers are empty

• More than 10 lockers are empty

• Exactly 10 lockers are empty

Tags

CCSS.1.NBT.A.1

What is the purpose of turning a sheet of lined paper sideways when solving word problems?

• To impress friends

• To make the paper easier to read

• To keep place values in their correct column

• To save paper

Tags

CCSS.2.NBT.B.7

What will be covered in the next lesson 5.11?

• Learning about geometry

• Introduction to fractions

• Using bar models to solve multi-step word problems

• Solving addition word problems

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D