P6 level, mostly. Please share problems (and answers) and others share methods of solutions. These are problems you make up to share with others.
The purpose of this forum is to keep us, as teachers, challenged to learn and explain math better so that we are better teachers, and to encourage...
Odd numbers are arranged in groups as follows: {1}, {3, 5}, {7, 9, 11}, {13, 15, 17, 19}, {21, 23, 25, 27, 29}, ... What is the smallest number in...
The purpose of the "Problem of the Day" forum is for FUN and LEARNING. You give your answer to the proposed problem and the original poster...
Jim bought some chocolates and gave half of it to Ken. Ken bought some sweets and gave half of it to Jim. Jim ate 12 sweets and Ken ate 18...
Use a pre-algebra method to solve. Algebra may be easier for some of us, but several pre-algebra solutions with bar models are possible. ...
School is up and running. Let's dust off the cobwebs from our brain and think about MATH! Here is a challenge question for primary math. ...
http://www.singaporemaths.com/forums/images/smilies/more%20smilies/usa2.gif For every 3 sparklers in a fire works inventory, there were 4 bottle...
Find a pre-algebra solution: 2/9 of Andrew’s fishing worms is equal to 1/3 of Bobby’s fishing worms. The boys count their worms and discover...
Use pre-algebraic strategies taught in the primary level to solve this problem. Two trains left the same station at the same time. One train...
Solve this problem and show us your solution before the big day. Before Mother’s Day, a florist has an inventory of corsages, each made with only...
An agricultural storage tank is shaped like a cuboid. It is two-thirds full of grain occupying 448 m^3. The rectangular bottom face has a perimeter...
Yvonne and Zach had a total of $240 in some unknown ratio. Yvonne saved an additional $30, while Zach spent $70. Now Yvonne has 50% more money than...
There are 98 girls in a choir and all are present for a competition. Unfortunately, 1/6 of the altos have caught a cold virus. There are also 2/7...
The numerator of a certain fraction is 6 more than the denominator. If the numerator is tripled and the denominator is increased by 1/3 of its...
Daniel has a job selling eggs. One morning he fills a basket with some eggs. At his first stop, he sells half of his eggs plus two additional...
Ben, Lisa, and David are at a birthday party for David. The ages of Ben and Lisa are in the ratio 12:5, respectively. In 8 years David will be...
Man-hours A construction job is to be completed in two phases. During the first phase, 8 workers take 15 days to complete 4/9 of the job. The...
Use pre-algebra methods. James and Cindy together have 60 paper airplanes. Cindy tears 12 of her paper airplanes and throws them away. Then,...
Two chemical tanks, P and Q, have equal amounts of fluid. The ratio of acid to water in tank P is 1 : 4 and that in tank Q is 2 : 5. The fluids in P...
X and Y are two identical tanks containing the same amount of water. The base area of each tank is 900 cm^2. When three identical metal balls are put...
Solve without formal algebra. 1. The total age of Mr. Tan and his son is 100 years. Ten years from now, Mr. Tan will be 3 times and an additional...
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