Worksheet Grade 2 Math

Storm Drain Patrol at Juniper Hill: A Grade 2 Word Problem Worksheet

Grade 2 students solve addition and subtraction word problems within 100 using a week of storm-drain-clearing counts from Juniper Hill's Storm Drain Patrol club.

Grade: Grade 2
Subject: Math
Material: Worksheet
Time: 30 min
Prep: No prep
Materials: None

Standards

2.OA.A.1 Common Core Math

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.

How this material aligns: Items 1, 2, 4, and 5 use one- and two-step addition and subtraction word problems with the unknown in different positions, matching the storm-drain-clearing counts to this standard's problem types exactly.

All materials for 2.OA.A.1 →

2.NBT.B.5 Common Core Math

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

How this material aligns: Items 3, 6, and 8 require fluently adding and subtracting two-digit totals within 100 using place-value strategies, the running-total skill this standard develops across the worksheet.

All materials for 2.NBT.B.5 →

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This material is in the public domain (CC0) and may be copied, edited, and shared freely, without attribution. Updated 2026-07-16.

Objectives

Students will solve one- and two-step word problems using addition and subtraction within 100.
Students will find an unknown addend, sum, or difference from a real-world counting scenario.
Students will compare two quantities and state how many more one amount is than another.

Vocabulary

Storm drain: A storm drain is the grate at the edge of a street that swallows rainwater and sends it through pipes to the nearest creek or river. That water is usually not treated, so only rain belongs down the drain.

Also: combined, compare

Teacher overview

Juniper Hill Elementary (a fictional school used for this worksheet) runs a Storm Drain Patrol club that checks the neighborhood's storm drains for leaves and trash before it rains, since a clogged drain can send water onto the sidewalk instead of carrying it away safely. This worksheet uses one week of the patrol's clearing counts to practice addition and subtraction word problems within 100, with the unknown number appearing in different places across the set.

Storm Drain Patrol at Juniper Hill: A Grade 2 Word Problem Worksheet — Grade 2 Math

Name: ____________________________ Date: ______________

Student Worksheet

Monday: the patrol cleared 12 storm drains. Tuesday: they cleared 15 storm drains. How many drains did they clear in all?
Wednesday came after a big storm. The patrol cleared 9 more drains than they did on Monday. How many drains did they clear on Wednesday?
Add Monday, Tuesday, and Wednesday. How many drains did the patrol clear in all?
The patrol's goal is 60 drains for the week. Look at your answer to problem 3. How many more drains does the patrol need to clear?
On Thursday, the patrol cleared some drains before lunch. They cleared 8 more drains after lunch. In all, they cleared 20 drains that day. How many did they clear before lunch?
Add Monday through Thursday. How many drains did the patrol clear in all?
Tuesday had more drains than Monday. How many more?
On Friday, the patrol cleared 14 more drains. That was their last day. What is the total for the whole week?
Which day did the patrol clear the most drains?
Why does it help to clear leaves and trash out of a storm drain before a big rainstorm? Write one or two sentences.

From Water for Schools (waterforschools.org). This material is in the public domain (CC0) and may be copied, edited, and shared freely.

Answer Key

Answer: 27 storm drains. 12 + 15 = 27.
Answer: 21 storm drains. 12 + 9 = 21.
Answer: 48 storm drains. 27 + 21 = 48.
Answer: 12 more storm drains. 60 minus 48 equals 12.
Answer: 12 storm drains. 20 minus 8 equals 12.
Answer: 68 storm drains. 48 + 20 = 68.
Answer: 3 more storm drains. 15 minus 12 equals 3.
Answer: 82 storm drains. 68 + 14 = 82.
Answer: Wednesday. The patrol cleared 21 storm drains that day, more than Monday (12), Tuesday (15), Thursday (20), or Friday (14).
Answer: Answers will vary; accept any answer noting that a clear storm drain lets rainwater flow away quickly, which helps prevent flooding on the sidewalk or street.

Differentiation

Support

Provide a number line marked 0 to 100 and a printed word-problem key-word chart ("combined" means add, "how many more" means compare) alongside items 1 through 8. Allow counters or base-ten blocks for students who need a concrete model.

Extension

Have students write their own two-step word problem using the Storm Drain Patrol's numbers, trade with a partner, and solve each other's problem, showing every step.

ELL supports

Pre-teach "storm drain," "combined," and "compare" with a simple drawing of a storm drain grate on a sidewalk. Allow item 10 to be answered orally to a partner before writing a response.