Grade 4 - Progress in Mathematics

CHAPTER 2

462

Practice 2-1

Practice 2-2

1a. 1 
 0 b. 4 
 4 c. 0 
 7

2a. 3 
 5 
 4 
 7 
 1 b. 6 
 1 
 6 
 1

3a. 3  1 b. 8  0 c. 7  7

4a. 17¢8¢ b.11¢6¢ c.12¢12¢

Find the value of the variable.

5a. 9 
e 14 b. 9  7 
y

6a. 7 b 1 b. 5 w 8

Estimate the sum or difference.

7a. 28 
 22 b. 589 
 612 c. 825  592

8a. 
$1.28 b. 
$309 c. 
$8.89


 1.15 
 194  7.20

Find the sum or difference.

9a. 38 
 41 b. 211 
 544 c.$17 
$32

10a. 85  40 b. 54  43 c.$68 $55

11. A quilt has 12 blue squares and 24
    green squares. How many squares does
    it have?


12. Max has 48 comic books. He sells 23 of
    them. How many does he have left?


13. Jan scored 8 points in a basketball game.
    Ina scored 19 points. How many more
    points did Ina score than Jan?


14. There are 18 turtles in a pond. There are
    7 adult turtles. How many are not adults?


15. Alma needs $14 to buy a compact disc.
    She has $11. How much more money
    does she need?

Add mentally. Use addition strategies.

1a. 5 
 0 b. 7 
 6 c. 6 
 7

2a. 
 6 b. 
 3 c. 
 1


 2 
 5 
 2


 5 
 1 
 4


 4 
 7 
 8

Add mentally.

3a. 14 
 15 b. 9 
 9 c. 120 
 90

4a. 
 74 b. 
 88 c. 
 9


 30 
 5 
 3


 44 
 8 
 9


 2

Find the value of the variable.

5a. z
 3  11 b. 15  7 
c

6a. 13 m 7 b. 16 f 8

Estimate. Then find the sum or difference.

7a. 253,196 
546,214 b. $82$47

8a. 
$.47 b. 
 8 $9.27 c. 
 8 $191.00


 .09  2.93  44.62

9.Mark has 14 toy trucks in a carrying case.

The case can hold 20 trucks. How many

more trucks does Mark need to fill

the case?

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