* I will post* seven new problems every weekend, one for each day of the week. The idea is that you work on your own during the week and I will post answers the following Saturday. For those of you who practiced with me last year, the process is similar.

* For instructions* on submitting weekly answers, click on the “Logistics” tab.

*posted problems, click on the “Archive” tab.*

**For previously****, click on the “News” tab.**

*For previous prizes*

Week of Sept 23 – Sept 29: **All about fractions.**

Click GoogleForm to submit answers by Sat, Sept 29.

Sept 23: What is the reciprocal of ?

Answer:

Sept 24: How much bigger is than ?

Answer: 24

Sept 25: What number must we add to to get ?

Answer:

Sept 26: What number must we subtract from to get ?

Answer:

Sept 27: What number must we subtract from to get ?

Answer:

Sept 28: Simplify .

Answer:

Sept 29: Which one is bigger or ?

Answer:

Week of Sept 16 – Sept 22: **Can you do the following calculations in your head?**

Click GoogleForm to submit answers by Sat, Sept 29.

Sept 16: Compute the product .

Answer: 1800

Sept 17: Simplify the expression

Answer: 0

Sept 18: What is the value (184 + 267 + 398) – (84 + 67 + 98)?

Answer: 600

Sept 19: What is the value 1 -3 + 5 – 7 + 9 – 11 + 13 – 15 + 17 – 19?

Answer: -10

Sept 20: What is the value ?

Answer: 1587

Sept 21: What is the value ?

Answer: 1990-1 = 1989

Sept 22: What is the value 91 + 92 + … + 98 + 99?

Answer: 855