1. Without using a calculator!
Guestimate that side
Take your best guess at figuring out the RED side in question
Without using a calculator!
Number a piece of paper 1 to 5
Record your answers on a piece of paper

2. 1
100 N
75 N
150
250

3. 2
100 N
75 N
150
250

4. 3.
200 N
500

5. 4.
200 N
500

6. 5.
350
50 N

7. Add up all your numbers ignoring negatives

8. 42.3 1
100 N
75 N
150
250

9. 72.4 2
100 N
75 N
150
250

10. 128.6 3.
200 N
500

11. 153.2 4.
200 N
500

12. 28.7 5.
350
50 N

13. =

14. = 425.2
Who is the closest?