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* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Order of Operations
Oral examples
1. 10 + 5 + 2
3. 10 - 5 + 2
5. 10 x 5 x 2
7. 10 ÷ 5 x 2
9. 10 x (5 + 2)
11. (10 + 5) x 2
13. 10 x (5 - 2)
15. (10 - 5) x 2
2. 10 + 5 - 2
4. 10 - 5 - 2
6. 10 x 5 ÷ 2
8. 10 ÷ 5 ÷ 2
10. 10 x 5 + 2
12. 10 + 5 x 2
14. 10 x 5 - 2
16. 10 - 5 x 2
Exercise 2
Written Examples
Are the following correct?
1)
2)
3)
4)
5)
6)
7)
8)
9)
6+3+2
6+3–2
6-3+2
6-3-2
6x3x2
6x3÷2
6÷3x2
6÷3÷2
6 x (3 + 2)
•
•
•
•
•
•
•
•
•
11
7
5
1
36
9
4
1
30
Find the answers to the following
10. 6 x 3 + 2
11. (6 + 3) x 2
12. 6 + 3 x 2
13. 6 x (3 - 2)
14. 6 x 3 - 2
15. (6 - 3) x 2
16. 6 - 3 x 2
•
•
•
•
•
•
•
20
18
12
6
16
6
0
Find the answers to the following
17)
18)
19)
20)
21)
22)
23)
24)
25)
8+4+2
8+4-2
8-4+2
8 - (4 + 2)
8-4-2
8 - (4 - 2)
8x4x2
8x4÷2
8÷4x2
•
•
•
•
•
•
•
•
•
14
10
6
2
2
6
64
16
4
Find the answers to the following
26) 8 ÷ (4 x
2)
27) 8 ÷ 4 ÷
2
28) 8 ÷ (4 ÷
2)
29) 8 x (4 + 2)
30) 8 x 4 + 2
31) (8 + 4) x 2
32) 8 + 4 x 2
•
•
•
•
•
•
•
1
1
4
48
34
24
16
Find the answers to the following
33) 8 x (4 - 2)
34) 8 x 4 - 2
35) (8 - 4) x 2
36) 8 - 4 x 2
37) 8 ÷ (4 - 2)
38) 8 ÷ 4 - 2
39) (8 - 4) ÷ 2
40) 8 - 4 ÷ 2
•
•
•
•
•
•
•
•
16
30
8
0
4
0
2
6
Find the answers to the following
41)
42)
43)
44)
45)
46)
47)
48)
12 + 6 + 2
12 + 6 - 2
12 - 6 + 2
12 - (6 + 2)
12 - 6 - 2
12 - (6 - 2)
12 x 6 x 2
12 x 6 ÷ 2
•
•
•
•
•
•
•
•
20
16
8
4
4
8
144
36
Are the following correct?
12 ÷ 6 x 2
12 ÷ (6 x 2)
12 ÷ 6 ÷ 2
12 ÷ (6 ÷
2)
53) 12 x (6 + 2)
54) 12 x 6 + 2
55) (12 + 6) x 2
56) 12 + 6 x 2
49)
50)
51)
52)
•
•
•
•
•
•
•
•
4
1
1
4
96
74
36
24
Find the answers
57)
58)
59)
60)
61)
62)
63)
64)
12 x (6 - 2)
12 x 6 - 2
(12 - 6) x 2
12 - 6 x 2
12 ÷ (6 - 2 )
12 ÷ 6 - 2
(12 - 6) ÷ 2
12 - 6 ÷ 2
•
•
•
•
•
•
•
•
48
70
12
0
3
0
3
9
Use 2 different operations (choosing from + - × ÷ ) to
show how three 4's (i.e. the numbers 4, 4 and 4) can be
combined to give the following answers.
Brackets may be used.
65)
66)
67)
68)
69)
70)
20
32
12
5
2
3
•
•
¸ •
•
•
•
4x4+4
(4 + 4) x 4
4x4-4
4+4 4
(4 + 4) 4
4 - (4 ¸ 4)
¸
¸
Exercise 7
17. { 4 } ____
18. { 4 } _____
19. { 6 } _____
20. { 6 } _____
21. 17 ______
22. { 17 } ____
23. 27 _____
24. { 27 } ____
{ factors of 8 }
{ multiples of 8 }
{ factors of 3 }
{ multiples of 3 }
{ prime numbers }
{ prime numbers }
{ prime numbers }
{ prime numbers }
Exercise 7
25.
26.
27.
28.
1 ____
{ prime factors of 3 }
2 ____
{ prime factors of 6 }
{ 3 }____ { prime factors of 9 }
{ 4 } _____ { prime factors of 12}