4th grade math, Chapter 2

Fact Families

100

Write the fact family for the following numbers:

6, 7, 13

6 + 7=13

7 + 6 = 13

13-7=6

13-6=7

200

Write the fact family for the following numbers:

8, 8, 16

8+8=16

16-8=8

300

Write the fact family for the following numbers:

8, 6, 14

8+6=14

6+8=14

14-6=8

14-8=6

400

What are the three facts in this fact family?

4+6=10

6+4=10

10-4=6

10-6=4

4, 6, 10

500

Write the fact family for the following numbers:

9, 9, 18

9+9=18

18-9=9

Missing addend

100

Find the missing addend:

723+n=910

n=187

200

Find the missing addend:

49+s=68

s=19

300

Find the missing addend:

n+126=518

n=392

400

Write the related subtraction fact and find the missing addend:

516+n=832

n=316

500

Write the related subtraction fact and find the missing addend:

73+n=121

n=48

Estimate

100

Round to the place with the greatest value to estimate.

463

500

200

Round to the place with the greatest value to estimate.

3,269

3,000

300

Round to the place with the greatest value to estimate.

65,084

70,000

400

Round to the place with the greatest value to estimate. Add.

65,286 + 24,872=

70,000 + 20,000=90,000

500

Round to the place with the greatest value to estimate. Add.

4,829 + 3,252 + 3,524=

5,000 + 3,000 + 4,000=12,000

Addition

100

Solve the problem:

65,286+24,872=

90,158

200

Solve the problem:

4,829+3,252+3,524=

11,605

300

Solve the problem:

$20.16+$36.42+$39.87=

$96.45

400

Solve the problem:

$454,045+$62,707=

$391,338

500

Solve the problem:

20,541+697,470+70,367=

788,378

Subtraction

100

Find the difference:

70,400-26,338=

44,062

200

Find the difference:

8,000-5,248=

2,752

300

Find the difference:

$90.27-$8.19=

$82.08

400

Find the difference:

$454,045-$62,707=

$391,338

500

Find the difference:

30,002-16,847=

13,155

Less or More

100

Find 1000 less than:

3,126

2,126

200

Find 1000 more than:

8,673

9,673

300

Find 10,000 less than:

15,261

5,261

400

Find 10,000 more than:

54,928

64,928

500

Find 10,000 less than:

302,567

292,567

Story Problems

100

One fishing boat caught 31,430 pounds of tuna last month.  Another boat caught 52,620 pounds last month.  How many pounds did both boats catch last month?

84,050 pounds

200

John collected $97.23 for the cancer fund.  Carter collected $89.97. How much MORE money did John collect than Carter?

$7.26

300

You have $25.00.  You buy a soccer ball for $17.95 and a playground ball for $5.99.  How much money will you have left?

$1.06

400

You have $9.50.  How much more money will you need to buy a basketball for $16.95 and a soccer ball for $10.95?

$18.40

500

Mrs. Barnes spent $650.85 on a table and a rocking chair.  The table cost $384.99. How much did the rocking chair cost?

$265.86