Order+of+Operations+Puzzle

=Order of Operations Puzzles= For each of the following puzzles, you have to insert a combination of signs, such as +, -, x, /,, to make the problem correct. You cannot erase any numbers or add any numbers. Copy them into your book. I suggest using pen to write the numbers and pencil to experiment with the required signs. You have to do at least one full set of puzzles.

I've attached a difficulty rating: the more question marks, the more difficult it is likely to be.

=Puzzle 1, difficulty: ????=

1 1 1 1 1 1 = 3

2 2 2 2 2 2 = 3

3 3 3 3 3 3 = 3

4 4 4 4 4 4 = 7

5 5 5 5 5 5 = 7

6 6 6 6 6 6 = 7

7 7 7 7 7 7 = 15

8 8 8 8 8 8 = 10

9 9 9 9 9 9 = 22.5

=Puzzle 2, difficulty: ???=

1 1 1 1 1 1 = 2

2 2 2 2 2 2 = 4

3 3 3 3 3 3 = 7

4 4 4 4 4 4 = 10

5 5 5 5 5 5 = 11

6 6 6 6 6 6 = 3

7 7 7 7 7 7 = 15

8 8 8 8 8 8 = 136

9 9 9 9 9 9 = 11

=Puzzle 3, difficulty: ???= 1 1 1 1 1 = 0

2 2 2 2 2 = 3

3 3 3 3 3 = 5

4 4 4 4 4 = 5

5 5 5 5 5 = 5

6 6 6 6 6 = 4

8 8 8 8 8 = 72

9 9 9 9 9 = 8

=Puzzle 4, difficulty: ?????=

1 2 3 4 5 = 0.25

2 3 4 5 6 = 0.3

3 4 5 6 7 = 4.75

4 5 6 7 8 = 2.75

5 6 7 8 9 = 3.4

6 7 8 9 1 = 16.6

7 8 9 1 2 = 12.5

8 9 1 2 3 = 24.3

9 1 2 3 4 = 4.5

=Puzzle 5, difficulty: ????=

1 2 3 4 5 = 0.6

2 3 4 5 6 = 13.4

3 4 5 6 7 = 45.8

4 5 6 7 8 = 0.4

5 6 7 8 9 = 15.1

6 7 8 9 1 = 43

7 8 9 1 2 = 24

8 9 1 2 3 = 23

9 1 2 3 4 = 21.5

=Puzzle 6 and Puzzle 7, difficulty: ?????=

Download the following file and either print it out and complete on the sheet, or complete it in the word document.