homework_remembering_te_grade_4-1zwawpi

2-14
Name
Date
Subtract. Then use addition to check the subtraction.
Show your work.
1. 8,960 - 1,238 =
7,722
2. 5,418 - 5,269 =
149
Check:
7,722 + 1,238 = 8,960
Check:
149 + 5,269 = 5,418
Sketch an area model for each exercise. Then find the product.
3. 28 × 94 2,632
4. 63 × 88 5,544
Check students’ work.
Use any method to solve. Sketch an area model if
you need to.
5. 66 × 24 1,584 6. 27 × 83 2,241 7. 79 × 35 2,765
8. Stretch Your Thinking Kia is printing packets of
information. There are 23 pages in a packet, and
she needs enough copies for 52 people. Each
package of paper contains 200 sheets. She estimates
she needs 5 packages of paper to print the packets.
Will she have enough paper? Explain.
No, Kia will not have enough paper. She rounded
52 to 50 and 23 to 20 to estimate that she needs
50 × 20, or 1,000 sheets of paper. Since both of
the factors were rounded down, 1,000 is an
underestimate of the amount of paper she needs.
© Houghton Mifflin Harcourt Publishing Company
56 UNIT 2 LESSON 14 Check Products of Two-Digit Numbers