Addition
Adding doesn't have a really clear system. Whenever possible when teaching math, show students the system.
The other problem to overcome is to stop students from counting the first number when adding-on. It slows them down.
If they say 5+2 = one, two, three, four, five, six, seven, it wastes time. Have them say the name of the first number and then add-on — five, six, seven.
- Adding zero.
Zero plus a number is the number. Always exaggerate an example: zero plus a trillion is a trillion. Go to an exercise worksheet. - Adding one.
One plus a number is the next number on the number line. Always exaggerate an example: One plus a zillion is a zillion and one, one plus a zillion and one is a zillion and two. Go to an exercise worksheet. - Adding two, three, and four.
Use "touch math" so the students can add-up using the points on the numbers.
Try to find a font that shows the number four with four end points. Go to a 2s exercise worksheet, a 3s exercise worksheet and a 4s exercise worksheet. - Adding doubles.
Teach the doubles, five plus five is ten, six plus six is twelve, etc. Do this by making it a game or a song: seven plus seven is fourteen, then say the alphabet or count to twenty. Once they know 6 +6, use it to teach that 7 + 7 is just two more, etc. Go to an exercise worksheet. - Adding a double plus one.
Ask them what eight plus eight is. Then say if eight plus eight is sixteen then eight plus nine must be one more or seventeen. - Adding ten.
Adding ten has a system, you just put a one infront of the number being added to.
eg. 10+7=17 Go to an exercise worksheet. - Adding nine.
If they know plus ten use it to teach plus nine. Plus nine is just one less than plus ten.
eg. 10+6=16 then 9+6 is one less or 15. Go to an exercise worksheet. - Teach the even and odd pairs.
Regroup these numbers.
eg. 5+7 = take one from the 7 and give it to the five and it becomes 6 + 6 = 12; 6 + 8 = 7 + 7 = 14. - Teach the rest.
5+8. This is honestly the hardest adding math fact to teach because none of the above works. I have this math fact framed so my students see it all the time.
Three strategies to use for students that have problems memorizing their addition math facts.
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For adding on up to +4, they should count up using the points on the lower number.
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Use a related fact like a double, for example, 6 + 5 would just be one more than 5 + 5.
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The third method is to regroup the numbers, for example, 7 + 5 would be regrouped as 6 + 6. Use our math strategy worksheets.
See our How to use the Math Fact series to teach basic math facts.
See our Teaching Resources for Math for our well-thought out addition worksheets, lesson plans, etc. Each series of addition worksheets are designed to progressively advance a student's addition math skills.
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