1. Chapter Four Study Guide Mrs. Sherwood
Grade Four Math
Chapter Four Study Guide
Mrs. Sherwood

2. Estimate
486, ,140
Round the 486,987 to 500,000
Round the 234,140 to 200,000
500,000 – 200,000 = 300,000

3. Estimating Money Amounts
Estimate: $57.46 – $38.35
Round $57.46 to $60
Round $38.35 to $40
$60 - $40 = $20

4. Solve for r
547 – r = 326
547 – 326 = 221
r = 221
974 – r = 673
974 – 673 = 301
r = 301

5. Word Problems
John R. has 589 baseball cards. Ryley has 416 baseball cards. How many more baseball cards does John have than Ryley? Write a number sentence to solve.
589 – 416 = 173
John has 173 more baseball cards than Ryley.

6. Subtract 6 7 16 14
708,754
235,865
472,889 1 1

7. You Can Do It!