Onthank Primary 3

Red and Blue Maths

Friday 15th January

We are looking at numbers to 1000 today in preparation for rounding to the nearest 10/100. It is also a catch up day to complete anything you missed this week.

Here is a reminder on place value for HTU:

https://video.link/w/p4aGb

Can you make up some of your own stories of numbers to 1000? Draw them out correctly or share some puzzles with your friends on Teams.

red blue ordering-numbers-1000

Here is a little challenge for those who want one. When you open the worksheet – don’t cheat and go to page 2 (it’s the answers for self correcting).

red blue puzzle tricolor-circles

 

Thursday 14th January – Red and Blue

Okay, yesterday some of you saw “up and down” sums for the first time, others had tried them before.  Please don’t panic.  There is a sheet attached explaining how to do them again, with regrouping.  Feel free to print it if you need it.  Otherwise go ahead and try the worksheet (there are actually 3 pages to it but don’t feel you need to do them all) before seeing how your mental agility is with this online quiz where you can choose how hard the quiz is.  Have fun.

red blue 2-Digit-Number-Addition-Worksheets

How to add with regrouping

Wednesday 13th Jan

Red and Blue are going to try some addition to 100 with grouping.  Now don’t panic.  If you feel you are not ready for it I have attached a sheet without grouping.  If you feel ready to give it a go, then watch the video first then attempt the sheet.  We all learn at different speeds so don’t feel pressured into trying the carrying sums. 

In the video the teacher draws the extra “ten” at the top of the sum.  However we teach you to put it below the line.  Watch both videos before starting any sheets.

https://video.link/w/Sv9Fb

https://video.link/w/uBMFb

Here’s a sheet with regrouping

2-digit-addition-regrouping-ones-1

Here’s a sheet with no regrouping

https://www.liveworksheets.com/es1213795za

When finished sheet, click “complete” and email to your teacher.  Then you can download and play this 4 in a Row addition game.

Four-in-a-Row-Dice-Addition-Game

Tuesday 12th January

Good morning.  We are continuing with addition to 100 today.  We have issued another sheet for you to do and there is a second sheet to challenge you called “Triangle Sums Challenge”.

red blue maths tues

number triangles challenge

 

Monday 11th January 2021

Good morning friends.  Today we are going to revise adding to 100 with no carries.    Watch this video first:

https://video.link/w/XDrEb

• Try the sheet that is attached in assignments on Teams or below.   Remember to have only one digit per box and always start from the units column, not the
tens.

2-digit-addition-on-squares no carrying

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