PSLE Math Applications Questions
PSLE Math Applications Questions
The main aim of this math revision note is to help your child become better at solving PSLE Math application questions.
These questions test your child on the ability to apply Math concepts to real life scenarios.
Before you read on, you might want to download this entire revision notes in PDF format to print it out for your child, or to read it later.
This will be delivered to your email inbox.
PSLE Math Applications Question 1
A group of 9 people booked a tennis court for 3 hours. They took turns to play. At any time, 4 of the people played while the other 5 rested. Given that each of them had the same amount of playing time, how long did each person play in the tennis court? Give your answer in hours and minutes.
There are 4 slots in the tennis court. The court was booked for 3 hours.
So, 3 hours of play time are allocated for each slot.
3h x 4 slots = 12h
The 4 slots of 3 hours mean there is a total of 12 hours of play time on the court.
This total play time (12 h) is shared among the 9 people equally.
Each person can play for 1 h 20 min.
PSLE Math Applications Question 2
Mark needs some ribbons to tie 100 presents for a party.
Each present requires 75 cm of ribbon. If ribbons are sold at 5 m per tape, how many tapes will he need?
Before I walk through the correct method, let me show you a common misconception most students usually make.
Common misconception:
1 balloon requires → 75 cm
100 balloons require → 75 cm x 100 = 7500 cm = 75 m
Number of tapes 5 m of ribbons need → 1 tape
Number of tapes 75 m of ribbons need → 75 m 5 m = 15 tapes
Most students think that since 1 present requires 75 cm of ribbon, so all 100 balloons will require 75 m of ribbons.
While this is not wrong, the problem comes when we use this 75 m to find the number of tapes.
The problem arises because the tapes have a limited amount of length.
The tapes do not roll out “endless streams” of ribbons.
So, each tape can only provide 6 ribbons, each measuring 75 cm.
There is a remaining 50 cm from the tape that cannot be used as it is not long enough to become that 75-cm ribbon.
This 50 cm will be discarded.
This is the reason why we cannot simplistically find out how many tapes the total ribbon length (75 m) 100 presents require.
When students divide the total length 75 m by the 5 m in each tape, students are not considering the remainder that cannot be “piece together” to form a full 75-cm ribbon in real life.
Correct way:
5 m = 500 cm
Number of ribbons every tape can provide = 500 cm 75 cm
= 6 ribbons R 50 cm
Number of tapes = 100 ribbons 6 ribbons per tape
= 16 tapes R 4 ribbons
Number of tapes 100 presents need
= 16 tapes + 1 more tape (for the 4 remaining ribbons)
= 17 tapes
Before you go, you might want to download this entire revision notes in PDF format to print it out for your child, or to read it later.
This will be delivered to your email inbox.
Does your child need help in his or her studies?
1) Live Zoom Lessons at Grade Solution Learning Centre
At Grade Solution Learning Centre, we are a team of dedicated educators whose mission is to guide your child to academic success. Here are the services we provide:
– Live Zoom lessons
– Adaptably™, an innovative smart learning platform featuring thousands of PSLE and exam-based questions tailored for your child’s practice. Adaptably not only tracks your child’s progress but also identifies their strengths and areas for improvement, providing valuable insights to enhance their learning journey.
– 24/7 Homework Helper Service
We provide all these services above at a very affordable monthly fee to allow as many students as possible to access such learning opportunities.
We specialise in English, Math, Science and Chinese subjects.
You can see our fees and schedules here >>
2) Pre-recorded Online courses on Jimmymaths.com
If you are looking for something that fits your budget, or prefer your child learn at his or her own pace, you can join our pre-recorded online Math courses.
Your child can:
– Learn from recorded videos
– Get access to lots of common exam questions to ensure sufficient practice
– Get unlimited support and homework help
You can see the available courses here >>