math worksheet named Calculating Codes

we are to fill in the correct signs (+ - X etc..) looks like we can't rearragne or create an order of operations other than the order of the signs.

the example is
1 2-3+4 5 = 54

1 2 3 4 5 = 60
only need two signs + and +

1 2 3 4 5 = 230
only need two signs + and x

1 2 3 4 5 = 11
only need three signs + divided by and +

1 2 3 4 5 = 51
only need three signs x + x

12+3+45=60

12+34*5=230

here are the first 2

3rd answer

1+23/4+5=11

1+2x3+45=51

To solve this math worksheet named "Calculating Codes," you need to fill in the correct signs (+, -, x, etc.) in order to get the desired result for each equation. It appears that you are not allowed to rearrange the numbers or create an order of operations other than the order of the signs given.

Let's go through the examples provided and determine which signs should be used to obtain the given results:

1. 2 - 3 + 4 * 5 = 54

In this equation, the multiplication operation takes priority over addition and subtraction. So, we need to multiply 4 and 5 first, which gives us 20. Then, we subtract 3 from 2, resulting in -1. Finally, we add -1 and 20 to get 19. Since the given result is 54, this example does not seem solvable using only addition and subtraction.

2. 1 + 2 + 3 + 4 * 5 = 60

Here, we have multiplication again. So, we multiply 4 and 5, which equals 20. Then, we add 1, 2, 3, and 20 together to get 26. Since the given result is 60, we need to add something more. To reach 60, we would need to add 34. Therefore, this example can be solved using only addition and a final result of 34.

3. 1 + 2 + 3 + 4 * 5 = 230

Similarly to the previous example, we multiply 4 and 5 first, resulting in 20. Then, we add 1, 2, 3, and 20 together to get 26. Since the given result is 230, we need to add a larger value. To reach 230, we would need to add 204. Therefore, this example can be solved using only addition and a final result of 204.

4. 1 + 2 + 3 + 4 ÷ 5 = 11

In this equation, the division operation takes priority over addition. So, we divide 4 by 5, which equals 0.8. Then, we add 1, 2, 3, and 0.8 together to get 6.8. Since the given result is 11, we need to add 4.2. Therefore, this example can be solved using addition and the division operation.

5. 1 x 2 + 3 x 4 + 5 = 51

Here, we have multiplication. So, we multiply 1 and 2, resulting in 2. Then, we multiply 3 and 4, which equals 12. Finally, we add 2, 12, and 5 together to get 19. Since the given result is 51, we need to add 32. Therefore, this example can be solved using multiplication and addition, with a final result of 32.

Keep in mind that these solutions may not be unique. For each example, there could be alternative combinations of signs that also yield the desired result.