Addition and Subtraction Word Problems Within 100

2nd Grade MathAddition and Subtraction4 pages

About this worksheet

Word Problem Adventures: Math Within 100 walks 2nd graders through the problem types named in Common Core 2.OA.1. Two one-step stories start it off: Maya's 38 beach stones plus 27 more, and Lucas giving away 35 of his 82 stickers. A compare problem follows, asking how many more sunflower seeds than pumpkin seeds the garden club planted (54 against 28), with space to draw a bar model. The sheet closes with a two-step library cart problem, 75 books minus 24 and then 19 more put away, and the answer key shows both solution paths, including 75 - 24 = 51 then 51 - 19.

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$Addition and Subtraction Word Problems Within 100: Addition and Subtraction - page 1$

$Addition and Subtraction Word Problems Within 100: Addition and Subtraction - page 2$

$Addition and Subtraction Word Problems Within 100: Addition and Subtraction - page 3$

$Addition and Subtraction Word Problems Within 100: Addition and Subtraction - page 4$

Curriculum objectives covered

2.OA.1

“Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.”

All four problems: adding to (stones), taking from (stickers), comparing (seeds) and a two-step take-from (the library cart), each represented with an unknown.

What's inside this worksheet

Part 1: Solving One-Step Problems

An add-to story and a take-from story, each with lines for an equation with a symbol for the unknown, the work, and the answer: 38 + 27 stones and 82 - 35 stickers.

Part 2: Compare and Solve

The garden club planted 54 sunflower and 28 pumpkin seeds. Students draw a quick diagram or bar model before writing 54 - 28 = 26.

Part 3: Two-Step Challenge

A callout reminds students to solve the first step first. Mr. Rivera puts away 24 books, then 19 more, from a cart of 75.

Answer key

Worked equations for all four problems, with the alternative subtract-twice route for the cart problem.

How teachers use it

Bar model warm-up

Model Part 2's seed comparison on the board first. It is the only problem with drawing space, and it anchors the compare language.

Equation first, answer second

Grade the equation line separately from the answer. A student who writes 82 - 35 = ? has met the standard even with an arithmetic slip.

Early finisher flip

Fast students write a third step for the cart problem, such as a delivery of new books, and trade with a partner.

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