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# Primary 1 Math for February - 4 Teacher's Tips On Scoring Well For Addition and Subtraction

Updated: Feb 3, 2023

If you are looking for an article that can provide valuable tips and help on the Primary 1 Mathematics Addition and Subtraction Within 10 topic, AGrader Learning Centre has condensed all the information that you might need in this short 2 minutes read article.

1. What is Required to Excel in Addition and Subtraction Within 10?

• Number bonds is very useful for this topic

• Students will make the mistake to add when they see ‘+’. Hence it is good habit to get them to identify the whole and place it in the number bond to get the answer.

2. What Kind of Questions Are Tested for Addition and Subtraction Within 10?

• Problem Sums

Even at P1 level, there will be problem sums. However, for this topic specifically, the problem sums are simple, usually involving only 1-step.

e.g.

John has 10 stickers. He gave 4 stickers to Tim.

How many stickers does John have left?

However, there could be slightly more difficult problem sums that involve 2-steps.

e.g.

James had 10 marbles. He lost 8 marbles to his brother in a game.

His mother bought him another 7 marbles.

How many marbles did James have in the end?

• Fact Family

P1 students will be required to form addition and subtraction facts from a picture, number bond and/or a set of numbers. This set of facts are called fact family. Do refer to the example questions below:

3. What Are Some Common Mistakes?

• Students often relate “more” to “+” and “less” to “-”. It is important to highlight that it is not always the case, and they must read carefully.

e.g. Sally has 5 cupcakes. She has 3 fewer cupcakes than her sister. How many cupcakes does her sister have?

Wrong Solution: 5 – 3 = 2

Correct Solution: 5 + 3 = 8

and

1 + ______ = 9

Wrong Solution: 1 + 9 = 10

Correct Solution: 9 – 1 = 8

4. What Can Parents Do to Help Their Child Prepare Better For Addition and Subtraction Within 10?

• Ensure that your child is strong in his/her Number Bonds, as it lays a good foundation for their understanding in Addition and Subtraction concept

• Inject learning in your daily activities! Students learn best with real life examples!

e.g. When shopping at the supermarket, count the number of items in the trolley as you add items or remove items

• Guide them in reading word problems and writing addition and subtraction equations at the beginning, encourage them even if they cannot get it at the first few tries

Ms. Jennifer Boh is the Head of Mathematics Curriculum for AGrader Learning Centre. After obtaining her Bachelor's Degree in Mathematics at National University of Singapore (NUS), Ms. Boh embarked on her teaching career in Mathematics and has since accumulated 16 years of experience in teaching and writing Primary School Mathematics' Curriculum. Not only so, Ms. Boh is the author behind several Primary Mathematics assessment books that are sold widely in major bookstores in Singapore.

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