Secondary 1 topics, the foundation the O-Level Mathematics 4052 syllabus builds on. Every question below has a full worked solution.
When a student gets a question wrong in Math Amigo, it does not show the answer straight away. It
reads the working, identifies the step that went wrong, and asks a question that points at the
correction. The worked solution is there once a genuine attempt has been made.
The frequency table below shows the favourite pets of 40 students. Find the missing frequency.
Pet
Frequency
Dog
?
Cat
6
Fish
7
Rabbit
12
Show the worked solution
Sum of known frequencies=6+7+12
=25
Missing frequency=40−25
=15
Answer: 15
Example 2
A pie chart represents the types of books read by library members. The angles of three of the sectors are shown in the pie chart. The angles of all sectors in a pie chart add up to 360°.
Find the angle of the sector for Science.
Show the worked solution
Sum of all angles=360°
64°+87°+85°+∠(Science)=360°
236°+∠(Science)=360°
∠(Science)=360°−236°
=124°
Answer: 124
Example 3
The bar graph shows the number of students who chose each subject as their favourite. Express the number of students who chose Science to those who chose Art as a ratio in its simplest form.
Show the worked solution
Number of students who chose Science =26
Number of students who chose Art =36
Ratio =26:36
HCF of 26 and 36 is 2
Simplified ratio =13:18
Answer: 13:18
Questions parents ask
Is it really free?
The free plan is permanent and does not ask for a card. It has daily limits on the AI feedback, and the paid plans lift them.
Which syllabus does this follow?
O-Level Mathematics (4052), for Singapore secondary students. Math Amigo covers Secondary 1 to 4, both O-Level Mathematics and Additional Mathematics.
Will it just show my child the answer?
No. On a wrong answer it looks at the working, points to the step that went wrong, and asks a question that helps the student find the correction. The full worked solution is available after a genuine attempt.