SG
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Primary 6
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Number and Algebra
Need help on this... Thank u in advance
Replies
4
Chong Ji Lian
I try. Hope is correct.
6 years ago
Karen Tan
Thank u
6 years ago
Chia-Chan Bk
Computation error 5(u-24)
5×24= 120 not 360
6 years ago
Chong Ji Lian
Oops sorry. Hope the rest of the working is correct and just need to adjust the numbers
6 years ago
Nora Yusoff
Asked 9 years ago
SG
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Primary 1
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Number and Algebra
Hi, anyone can assist on how can i explain to my p1 girl? I know the answer but im not sure how to explain on arriving at it..thank u so much in advance..
Replies
14
Caleb Tey
What plus 8 will give u 7? Only one choice.
6 years ago
Richard Gavina
The box at ones digit is 9.. The box at tens digit is 3..
6 years ago
Nora Yusoff
Thanks guys, i already know the answer..but how do i explain to a P1 on this? Any advise??
6 years ago
Richard Gavina
Tell to your kid, think of a number in ones digit that can be the sum of the number (0+8 to 9+8) is equal to 7 in ones digit
6 years ago
Nora Yusoff
Thanks alot for everyone's help..appreciate it..
6 years ago
Chong Ji Lian
Which single digit number when added to 9 will give you digit 7 in the ones place? Can ask her to try it out in table form with tens and ones column so that as explanation would be clearer to her.
6 years ago
Nora Yusoff
Yes...yes..now am much clearer in explaining to her..thank u once again guys.
6 years ago
Jackie Keepers
Use manipulatives. Do you have base-ten blocks?
6 years ago
Nora Yusoff
I don't have one Jackie Keepers..planning to get one..
6 years ago
Jackie Keepers
You could use something else like noodles to represent 10s and cereal to represent ones...show an example with the numbers all showing like 15 plus 17 and show how a new group of ten is made. then have her look at the problem with missing ones and tens.
6 years ago
Jackie Keepers
I can send a picture to show what I mean...but hands on would work well in this case.
6 years ago
Nora Yusoff
Got it Jackie Keepers...all of u have been very helpful..thank u all..😊
6 years ago
Michelle Loeh
I would explained that since 7 cant minus 8, we got to add a 10 to the 7 by carry forward the (1)7 to the Tens. Then use 17 minus 8 to get 9. Hope this helps.
6 years ago
Nora Yusoff
Another good explanation Michelle Loeh...thanks for sharing..😉