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Worksheet Grade 2 Math

Quill Creek Cleanup Count: A Grade 2 Place-Value Worksheet

Grade 2 students add and subtract three-digit litter counts from Quill Creek's cleanup day bins, using place-value strategies to work within 1000.

Objectives

  1. Students will add two- and three-digit numbers within 1000 using place-value strategies.
  2. Students will subtract two- and three-digit numbers within 1000 to find a difference.
  3. Students will compare totals to determine which of several categories is greatest or least.

Vocabulary

Key words: place value, hundreds, total

Teacher overview

Quill Creek (a fictional waterway used for this worksheet) hosts an annual community cleanup day, when volunteers wade along the banks and sort what they find into bins by material. This worksheet uses this year's and last year's bin counts to practice adding and subtracting numbers within 1000 using place-value strategies, since the counts in a real cleanup often run into the hundreds.

Quill Creek Cleanup Count: A Grade 2 Place-Value Worksheet — Grade 2 Math
Name: ____________________________ Date: ______________

Student Worksheet

  1. On Cleanup Day, volunteers picked up 145 pieces of plastic litter. They picked up 230 pieces of paper litter. How many pieces did they pick up in all?
  2. Volunteers also picked up 118 pieces of metal litter. How many more paper pieces than metal pieces did they pick up?
  3. Add the plastic and metal pieces. How many pieces is that in all?
  4. Add all three bins: plastic, paper, and metal. What is the total?
  5. Last year, the plastic, paper, and metal bins held 375 pieces in all. How many more pieces did those three bins hold this year than last year?
  6. This year, a new bin held glass litter. It had 96 pieces. What is the new total for all four bins?
  7. Which bin had the most litter pieces?
  8. Which bin had the fewest litter pieces?
  9. The goal is 600 pieces for all four bins. Look at your answer to problem 6. How many more pieces are needed to reach the goal?
  10. Why is it helpful to sort litter into bins like plastic, paper, metal, and glass before recycling it? 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
  1. Answer: 375 pieces. 145 + 230 = 375.
  2. Answer: 112 more pieces. 230 minus 118 equals 112.
  3. Answer: 263 pieces. 145 + 118 = 263.
  4. Answer: 493 pieces. 145 + 230 + 118 = 493.
  5. Answer: 118 more pieces. 493 minus 375 equals 118.
  6. Answer: 589 pieces. 493 + 96 = 589.
  7. Answer: Paper. It had 230 pieces, more than plastic (145), metal (118), or glass (96).
  8. Answer: Glass. It had 96 pieces, fewer than plastic (145), metal (118), or paper (230).
  9. Answer: 11 more pieces. 600 minus 589 equals 11.
  10. Answer: Answers will vary; accept any answer noting that sorting litter by material makes it easier for a recycling center to process each type correctly, or that mixed litter is harder to recycle.

Differentiation

Support

Provide a place-value chart with hundreds, tens, and ones columns alongside items 1 through 6, and allow students to use base-ten blocks or place-value disks to model each addition or subtraction.

Extension

Ask students to invent a fifth bin, choosing their own material and a three-digit count less than 300, then recompute the new grand total for all five bins.

ELL supports

Pre-teach "combined," "total," and "compare" with a simple sorting demonstration using colored counters standing in for the four litter materials. Allow items 7 and 8 to be answered by pointing to the largest or smallest number in a printed table of the four bin counts.