Grade5 Math Forum
Welcome to our Grade5 Math Forum for Parents where you can help and be helped! We will do our utmost to answer your questions to the best of our knowledge and experience.
I encourage you to jump in, share a story, ask a question or answer one.
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Ask Grade 5 Question or Post Answer/Comment
Send us your Grade 5 kids math question and we will attempt to provide a solution using the Model Method where possible.
Please post only 1 question per submission so that we can group the questions under different Concept Models to facilitate all users' future searches for similar questions.
There is no limit to the number of questions you can ask here, just post each question separately.
Visitors to this Forum can also post their answers to your questions.
If it is impossible or not efficient to solve using the Model Method, we will attempt to solve it using other Singapore Math Heuristics.
What Other Visitors Have Said
Click below to see contributions from other visitors to this page...
Number-remainder model 
Ted spent $121of his money.He gave 4/9 of his remaining money to his brother.How much did ted have at first
male
mrs li bought 1.6kg of red and green beans,30% were green .After mrs li used some of the green beans to make dessert ,only 20% of the beans left were green.how …
P5 Math
Chee Hern paid $26.80 for 5kg of sugar and 4kg of flour. Brian paid $14.50 for 2kg of sugar and 3kg of flour. How much did 1kg of sugar cost?
Mom
shun had 418 blue and red beads. After losing 7/10 of the blue beads and giving 3/4 to his sister. he had an equal number of the blue and the red beads. …
MathsisManiac
There were an equal number of Carrots, Tomatoes and Cabbages in a pantry. Yiguo, used 49 carrots and some tomatoes and Cabbages. There were 3 times as …
mlpp
There were 3/5 as many adults as kids on a bus. At a bus stop 6 adults and 6 kids boarded the bus. As a result, there were 2/3 as many adults as kids on …
mlpp
2 painters paint 2 rooms in 2 hours then how many painters will be required to paint 18rooms in 6hours ?
Model method
One light flashes every 2 minutes and another light flashes every 7 minutes. If both lights flash together at 1 PM, what is the first time after 3PM that …
Bar model math
The five members of the computer club decided to buy a used computer, dividing up the cost equally. Later, three new members joined the club and agreed …
mom
Early one morning Sandy took out one-half of the coins from her coin bank, and in the evening she put in 20 coins. The next morning she took out one-third …
Pls help to solve using Block Method
Three-fifths of the beads in a box are yellow. Rest are red and blue beads. There are twice as many yellow beads as red beads. There are 30 more red beads …
Average
John is twice as tall as Susan. Their average height is 1.56m. What is Susan's height?
P5 Maths Fraction Word Problem
4/9 of the number of children at a park is equal to 1/5 of the number of adults. There are 609 people at the park. How many more adults than children are …
Singapore help
Natalie cuts a raffia 4/5 m long into 8 pieces. what is the length of each piece in meters?
Another help
Grace has thrice as many postcards as Sam. If grace uses 12 postcards, he will have the same number of postcards as Sam. How many postcards does grace …
Help
Tom has thrice as many postcards as Sam. If Tom gives Sam 12 postcards, he will have the same number of postcards as Sam. How many postcards does tom have …
Equal concept?
There were 920 spectators in the sports hall watching a badminton match. After 2/5 of the children and 2/7 of the adults left the hall, the number of children …
Time Interval
If a clock strikes 7 times at 7 o'clock is 7 seconds how long will it take the same clock to strike 12 times at 12 o'clock?
Here's My Answer
by …
Constant Quantity
Mrs Li bought 1.6kg of red and green beans. 30% were green. After Mrs Li used some of the green beans to make a dessert, only 20% of the beans left were …
Whole Numbers
Sharon and Cindy went shopping with a total of $300 and each bought some items. The amount Sharon spent is three times the amount he has left. The amount …
Grade 5 - Posted on Wednesday
Zach, the question of Evan has #2.55 more than Richard. Jonas has four times as much money as Even. The 3 boys have $24.15 altogether. How much money …
Constant Quantity?
Francis, Gif and Hakim shared a sum of money. Hakim decided to give Francis 2/3 of his money. Then Francis gave Gif 3/4 of his money and Gif gave 3/7 of …
Mrs.pitts,Christians mom
What is the box method in 5thgrade mathematics? Does anyone know. I'm stumped and so is my son,whom tutors kids his own age,10yrs. Old so he is even stumped …
P5 Maths Not rated yet
Hi Zach,
Appreciate your help on the followng question:-
John bought some strawberries and wanted to put them into boxes. If she put 4 strawberries …
P5 Maths Not rated yet
Hi Zach,
Need your help to solve the following question:-
May is 5 times as old as Julia this year. Julia is 9 years old now. In how many years' …
Word problems Not rated yet
sally and mabel had the same number of cards at first. After sally sold 18 of her cards, mabel had four times as may cards as sally. How many cards dideach …
block method addition Not rated yet
Please help me answer these two problems. thank you.If you can please show the solution and explanation, so I can teach my son. Thank you very much. …
Ratio questions Not rated yet
The number of marbles in Box A,Box B and Box C was 195. John added 60 marbles to those in Box A,doubled the number of marbles in Box B and halved the number …
Miss Jean Not rated yet
The ratio of Peter's money to Mark's money was 7:10. After Peter bought 5 comic books at $3.60 each, the ratio of Peter's money to Mark's money was 1:4. …
ratio Not rated yet
PLEASE HELP TO SOLVE THE QUESTION.
THANK YOU.
Here's My Answer
by Zach
(Singapore)
Step 1: This question involves the Overlapping Concept. …
help Not rated yet
Each of the 50 campers could earn 1 of 3 different types of boating badges. Of all the campers, 20% got sailing badges, 50% earned rowing badges, and 10% …
Age Model Question Not rated yet
A is 40% of his brother's age. In 21 years time, A is 75% of his brother's age. What is A's age now?
Here's My Answer
by Zach
(Singapore)
…
Wednesday POD Not rated yet
Evan has $2.55 more than Richard. Jonas has four times as much money as Evan. The three boys have $24.15 altogether. How much money does Jonas have? …
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