Sunday, December 4, 2011
Sunday, October 2, 2011
Saturday, October 1, 2011
Wednesday, June 8, 2011
Trial and error 2
There are 40 students going to the library. each girl borrowed 5 books and each boy borrowed 3 books. The girls have 128 more books than boys. How many girls are there ?
Let all students be girls
40 x 5 = 200 books
Difference= 200-128 = 72
Sum of each = 5+3 =8
72/8= 9 boys
Let all students be girls
40 x 5 = 200 books
Difference= 200-128 = 72
Sum of each = 5+3 =8
72/8= 9 boys
Tuesday, June 7, 2011
Blogging With I Phone On The Move
I have just installed an free app on my iPhone to blog it's quite useful if I am on the move using free mobile blogging. Some of the advantages will include recording your latest thought before you forgotten, update answers asked by students or people in need, productivity when traveling.
Monday, May 30, 2011
Guess And Check( Excess and shortage Questions)
Example 1
The Technique of handling will be finding the number of people participating is found by using (excess + shortage) / (difference each)
number of people = (excess + shortage) / (difference each)
I have some sweets. If packet them into groups of 6 I will have 4 extra sweets. If I packet them into groups of 7 I will have 3 sweets short. How many sweets do I have ?
Short + excess =4+3 = 7
Difference = 7-6 =1
Number of packets = 7 divide 1 = 7 groups
total sweets = 7 x 6 + 4 = 46 sweets
work it out
Question 1
I have some pens to be share by a few children. If each child gets 3 pens, there will be 2 pen left. If each child gets 4 sweets, there will be 3 sweets short. How many children are there in a group? How many sweets are there altogether?
Question 2
There are about 40 to 50 people attending a class. If the people are grouped into groups of five, there will be 3 people extra. If they are grouped into groups of of six, there will be 5 students short. How many people are there?
Question 3
A group of stones are grouped into bags. If there are 4 stones in each bag there will be 4 stones extra . There are 5 stones in each bag there will be 3 stones short. How many stones are there altogether ?
Question 4
The Technique of handling will be finding the number of people participating is found by using (excess + shortage) / (difference each)
number of people = (excess + shortage) / (difference each)
I have some sweets. If packet them into groups of 6 I will have 4 extra sweets. If I packet them into groups of 7 I will have 3 sweets short. How many sweets do I have ?
Short + excess =4+3 = 7
Difference = 7-6 =1
Number of packets = 7 divide 1 = 7 groups
total sweets = 7 x 6 + 4 = 46 sweets
work it out
Question 1
I have some pens to be share by a few children. If each child gets 3 pens, there will be 2 pen left. If each child gets 4 sweets, there will be 3 sweets short. How many children are there in a group? How many sweets are there altogether?
Question 2
There are about 40 to 50 people attending a class. If the people are grouped into groups of five, there will be 3 people extra. If they are grouped into groups of of six, there will be 5 students short. How many people are there?
Question 3
A group of stones are grouped into bags. If there are 4 stones in each bag there will be 4 stones extra . There are 5 stones in each bag there will be 3 stones short. How many stones are there altogether ?
Question 4
Objective Of Mathematics PSLE BLOG
Dear Students & Parents,
This blog is dedicated to help all kids in Singapore and the rest of the world have a better understanding on mathematics at elementary level. In this June I will dedicate my blog time to more on problem solving. I hope to provide various easy understand and school related methods to solve these challenging questions.
I am a full time Mathematics tutor with 8 years of experience with good track records. Feel free to post any questions to me. I will reply asap !
This blog is dedicated to help all kids in Singapore and the rest of the world have a better understanding on mathematics at elementary level. In this June I will dedicate my blog time to more on problem solving. I hope to provide various easy understand and school related methods to solve these challenging questions.
I am a full time Mathematics tutor with 8 years of experience with good track records. Feel free to post any questions to me. I will reply asap !
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