Grade 2 | MATHEMATICS
WEEK 9 • PRACTICE WORKBOOK • DAYS 41–45
Read the matching lesson in the Week 9 Student Textbook first. Write each answer on the line below its question. Day 45 is answered on your own.
Fillable Practice PDF: Open or download Week 9 fillable workbook. Type answers in the labeled fields, then save your completed copy. For graph drawings, use the printed diagram.
Week 9 Student Textbook | Week 9 Practice Workbook | Week 9 Teacher Guide | Week 8 Student Textbook | Week 10 Student Textbook | Grade 2 index
Day 41: Estimate Lengths
Estimate or measure
| Object | Estimate | Measured |
|---|---|---|
| Shoe | 8 inches | 9 inches |
| Doorway height | 2 meters | 2 meters |
| Glue stick | 15 centimeters | 9 centimeters |
- For which object was the estimate exactly right?
Answer: _________________________________________________
- How many inches off was the shoe estimate?
Answer: _________________________________________________
- How many centimeters off was the glue stick estimate?
Answer: _________________________________________________
- Which is a better estimate for a crayon: 8 centimeters or 8 meters?
Answer: _________________________________________________
- Explain how knowing that a fingertip is about 1 centimeter wide helps you estimate.
Answer: _________________________________________________
_____________________________________________
Hands-on task: Estimate, then measure
- Choose 3 objects.
- Estimate each length first and write it down.
- Measure each object.
- Write how far each estimate was from the measurement.
My estimates and measurements:
_________________________________________________
_____________________________________________
Day 42: How Much Longer?
Snake models
| Snake | Length |
|---|---|
| Green snake | 23 centimeters |
| Yellow snake | 17 centimeters |
| Brown snake | 31 centimeters |
- How much longer is the green snake than the yellow snake?
Answer: _________________________________________________
- How much longer is the brown snake than the green snake?
Answer: _________________________________________________
- How much longer is the brown snake than the yellow snake?
Answer: _________________________________________________
- Which two snakes have the smallest difference in length?
Answer: _________________________________________________
- Lee measured one pencil in inches and another in centimeters, then subtracted. Explain why his answer will not make sense.
Answer: _________________________________________________
_____________________________________________
Day 43: Length Word Problems
- A rope is 60 inches long. Dad cuts off 24 inches. How long is the rope now?
Answer: _________________________________________________
- Ella’s ribbon is 38 centimeters. Ava’s ribbon is 19 centimeters longer than Ella’s. How long is Ava’s ribbon?
Answer: _________________________________________________
- A fence has two parts. One part is 27 meters and the other part is 35 meters. How long is the fence?
Answer: _________________________________________________
- A plant was 52 centimeters tall. Now it is 70 centimeters tall. How much did it grow?
Answer: _________________________________________________
- Write an equation with a question mark for this problem, then solve it: A board is 85 inches long. After a piece is cut off, it is 49 inches long. How long was the piece? Explain your equation.
Answer: _________________________________________________
_____________________________________________
Day 44: Lengths on a Number Line
- On a number line, start at 48 and jump forward 30. Where do you land?
Answer: _________________________________________________
- Start at 75 and jump back 20, then back 4. Where do you land?
Answer: _________________________________________________
- Use jumps on a number line to find 57 + 16.
Answer: _________________________________________________
- Use jumps on a number line to find 90 – 35.
Answer: _________________________________________________
- A snail crawled from 0 to 23 centimeters, then 18 centimeters more. Explain how a number line shows how far it went in all.
Answer: _________________________________________________
_____________________________________________
Day 45: Independent Check: Estimate, Compare and Solve
Answer on your own. An adult may read the questions aloud but should not give the answers.
- Which is a better estimate for the length of a bed: 2 meters or 2 centimeters?
Answer: _________________________________________________
- A hose is 50 feet long. A shorter hose is 32 feet long. How much longer is the first hose?
Answer: _________________________________________________
- Max ran 45 meters, rested, then ran 37 more meters. How far did he run in all?
Answer: _________________________________________________
- On a number line, start at 64 and jump back 30. Where do you land?
Answer: _________________________________________________
- Ruby’s string is 72 centimeters. She gives away 25 centimeters. Explain how you find how much string she has left, and give the answer.
Answer: _________________________________________________
_____________________________________________
Week 9 Student Textbook | Week 9 Practice Workbook | Week 9 Teacher Guide | Week 8 Student Textbook | Week 10 Student Textbook | Grade 2 index