4

4

Mathana1

1.

ก.. . .

.

Mathana2

2.

ก.. . .

.

Mathana3

ก. 15 . 5 . . 1 . 1 . . . 150 .

3.

. 15 . 5 .

200 .100 .

. . 150 . Mathana4

4.

. . 25 .. 24 .. 21 .. 24 .

. 6 .

5 . 4 .

10 .

. 8 .

4 . 4 .8 .

. 8 .

6 . 7 .

. 7 .

5 . 5 .

7 .

Mathana5

ก. 180 . . 150 .. 5 .. . 80,000 .

5.

. Mathana6

w2

x3

y4

z5

4 9

16

25

6. . . 4

. w . x

. y . zMathana7

.

- w 2+2+2+2 = 8

- x 3+3+3+3 = 12- y 4+4+4+4 = 16 - z 5+5+5+5 = 20

Mathana8

7. 90 . 40 .

40 .

90 .

. 50 .

. 130 .

. 260 .. 360 .

. = 40+90+40+90= 260 .

Mathana9

8.

2 .

1 .. 2 .. 4 .. 6 .. 8 .

. = 2+1+1+2+1+1 = 8 .

Mathana10

9.

10

6

. 16 .

. 22 .

. 26 .. 32 .

. = 10+6+10+6 = 32

Mathana11

10.

.

.

. .

ก.

Mathana12

4 .

3 .

6 .

5 .5 .

1 . : 100 .

11-14

11.

12.

13.

14.

500 .

300 .

700 .

500 .

Mathana13

15. 6

. 6

. 10

. 12 . 16

. 1 = 2 6 = 6 x 2

= 12 . Mathana14

16. 11 . 6 .

. 58 . . 116 .

. 1,106 . . 11,006 .

. 1 . = 10 .11 . = 110 .

6 .

110+6 = 116 .Mathana15

17. 15 . 75 .

. 225 . 1,575

. 7,875 . 15,075

. 1 . = 100 .15 . = 100 x 15 .

= 1,500 .75 .

1,500 + 75 = 1,575 . Mathana16

18. 285 .

. 1 85

. 2 85

. 14 5 . 28 5

. 100 . 1

285 ÷ 100 = 2 85

285 . 2 . 85 . Mathana17

19. 160

. 20

. 40

. 80 . 160

. 2 = 1

160 = 160 ÷ 2

= 80 Mathana18

20. 9 20 4 85

. 2 35

. 4 35

. 4 65 . 5 65

ข.9 20

4 85

4 35

4 35

-

Mathana19

21. 60 . 250 .115 . 870 .

. 175 . 20 .

. 175 . 120 .

. 176 . 120 .. 186 . 20 .

. . .

60 250

115 870

176 120

+

Mathana20

22. 1 750

5

. 50 . 50 . . 50 . 750 .

. 8 . 750 . . 42 . 50 .

. .

1 1 750

5

8 750

Mathana21

23.

. 6

. 7

. 9 . 11

. 7

Mathana22

24. 23 1 3 .

. 18

. 21

. 27 . 33

. 1 3 .7 7x3 .

= 21 .21

Mathana23

25.

.

.

..

.

Mathana24

26. 2 7

. 17

. 27

. 207 . 2,007

. 1 10 2

2x10 = 20 7

20 + 7 = 27 Mathana25

27. 5,300

. 2 150

. 5 300

. 53 . 530

. 1,000 1

5,300 5,300 1,000

= 5 3005,300 5 300

Mathana26

. 1 1,000 5 1,000 x 5

= 5,000

28. 5

. 50

. 500

. 5,000 . 50,000

Mathana27

29. 6,600

. 3 3 . 3 6

. 6 3 . 6 6

. 100 1 6,600 6,600 1006,600 = 66

( 10 1 66 66 10

= 6 6

6,600 6 6 Mathana28

30. 3 4 3 7

. 3 5

. 6 1

. 7 . 7 1

. .

3 4

3 7

7 1

+

Mathana29

31. 7 5

. 8

. 12

. 14 . 28

. 1 . 10 7 . 7x10

= 70 5 70 5

= 14 14 Mathana30

32. 20 2

1 3

. 10 5

. 18 9

. 19 1 . 21 5

. . 20 2

1 3

18 9

-

Mathana31

33. 1

.

.

..

. 1

Mathana32

34 5 25 2

. 20

. 25

. 30 . 35

ก. 2 5 5 25

2 25 2 20

Mathana33

35. 1,000

. 250

. 500

. 750 . 1,000

Mathana34

36. 150

. 150

. 300

. 450 . 600

150 = += 150 + 150 = 300

Mathana35

37. 1 4 3

. 6 12

. 24 . 48

¼ 3 1 = 4 x ¼

= 4 x 3 = 12

12 Mathana36

38.

.

.. ,

Mathana37

39.

. 30 2,000,000

. 120

. 80

ก.

Mathana38

40. 3

. 30 60

. 300 . 6,000

. 1 100 3 100 x 3

= 300

Mathana39

41. 2

. 20 40

. 200 . 4,000

. 1 20 2 20x2

= 40

Mathana40

42. 2 1,200

. 22 32

. 2,200 . 3,200

. 1 1,000 2 1,000 x 2

= 2,000 2,000+1,200 = 3,200

Mathana41

43. 5,300

. 5 300 50 300

. 53 . 530

ก. 1,000 1 5,300

5,300 1,000 = 5 300

5,300 5 300

Mathana42

44. 750 6

. 4 500 40 500

. 45 . 450

ก. 1 750 6 750 x 6

= 4,500 1,000 1 4,500

4,500 1,000 = 4 500

4,500 4 500 Mathana43

45. 6 42

. 7 14

. 126 . 252

ก. 6 1 42 42 6

= 77

Mathana44

Mathana45

Mathana46