Virtual Number Talks
This blog post is dedicated to my graduate course ECE 505, which is missing today's course. Solve this Number Talk mentally.
144+256
150 + 250
150 + 256
144 + 260
My goal is to ensure PST can think flexibly in mathematics. I can wait to see their thinking.
400, 400, 406, 404
ReplyDeleteMichelle Williamson
Delete1. 144 + 256
Delete100 +250 = 350
44 + 6 = 50
350 + 50 = 400
2. 150 + 250
100 + 200 = 300
50 + 50 = 100
300 + 100 = 400
3. 150 + 256
150 + 200 = 350
350 + 56 = 406
4. 144 + 260
140 + 260 = 400
400 + 4 = 404
1. 144 + 256
Delete100 +250 = 350
44 + 6 = 50
350 + 50 = 400
2. 150 + 250
100 + 200 = 300
50 + 50 = 100
300 + 100 = 400
3. 150 + 256
150 + 200 = 350
350 + 56 = 406
4. 144 + 260
140 + 260 = 400
400 + 4 = 404
I am still the same person, had to add my name.
ReplyDelete1. 144 + 256
144 + 256 = 400
2. 150 + 250
150 + 250 = 400
3. 150 + 256
150 + 256 = 406
4. 144 + 260
144 + 260 = 404
The sums are:
- 144 + 256 = 400
- 150 + 250 = 400
- 150 + 256 = 406
- 144 + 260 = 404
1. 144 + 256 =
DeleteT H U
1 4 4
2 5 6
__________
4 0 0
2. 150 + 250
100+ 200+50 + 50 = 400
3.150 + 256
100 + 50 + 50 + 6 = 406
4. 144+ 260
100 + 200 + 40+ 60+ 4 = 404
1. 144+256=400 (140+260)
ReplyDelete2. 150+250=400 (200+200)
3. 150+256= 406
4. 144+260= 404
1. 144 + 256 = 400
ReplyDelete2. 150 + 250 = 400
3. 150 + 256 = 406
I brought over the 6 and added 15 + 25 = 40
4. 144 + 260 = 404
I brought over the 4 and added 14 + 26 = 40
1. 144 = 100 + 40 + 4
ReplyDelete256 = 200 + 50 + 6
100 + 200 = 300
40 + 50 = 90
4 + 6 = 10
300 + 90 + 10 = 400
2. 150 + 250 = 400
3. 150 = 100 + 50 + 0
256 = 200 + 50 + 6
100 + 200 = 300
50 + 50 = 100
0 + 6 = 6
300 + 100 + 6 = 406
4. 144 + 260 =404
144 + 256
ReplyDeleteI broke 256 into 200 + 56.
144 + 200 = 344
344 + 56 = 400
150 + 250
150 + 250 = 400
150 + 256
I changed 256 to 250 to make it easier.
150 + 250 = 400, then I added the extra 6.
400 + 6 = 406
144 + 260
I saw this as similar to 150 + 260, but 6 less.
150 + 260 = 410
410 - 6 = 404
144 + 256
ReplyDelete144 + 256 = (100 + 44) + (200 + 56)
= (100 + 200) + (44 + 56)
= 300 + 100
= 400
150 + 250
150 + 250 = (100 + 50) + (200 + 50)
= (100 + 200) + (50 + 50)
= 300 + 100
= 400
150 + 256
150 + 256 = 150 + (250 + 6)
= (150 + 250) + 6
= 400 + 6
= 406
144 + 260
144 + 260 = (140 + 4) + (260)
= (140 + 260) + 4
= 400 + 4
= 404
So:
144 + 256 = 400
150 + 250 = 400
150 + 256 = 406
144 + 260 = 404
144+256
ReplyDelete44+56=100
200+100=300
300+100=400
150 + 250
50+50=100
200=100=300
300+100=400
150 + 256
50+50=100
200+100=300
+ 6 =406
144 + 260
60+40=100
200+100+4=404
Lauren Boustani
ReplyDeleteFor 144+25, I would solve it by doing this:
40+20=60, then take the 100 from 144 and solve it like this:
60 +100= 160. Then add the 4 and 5 which equals 9. 160+9= 169.
For 150 + 250, I would solve it by doing this:
50+50=100, then add 100+ 200=300.
100+300=400
For 150 + 256, I would solve this by doing this:
50+50=100
100+200=300
300+100=400
400+6=406
For 144 + 260, I would solve it by doing this:
40+60=100
100+200= 300
300+100=400
Add the 4 from 144
400+4=404
Lauren Boustani
DeleteCorrection 144 +256
100+ 200=300
44+56=100
300+100= 400
Jessica Boustani
ReplyDelete144+256=400
I turned 144 into 140 and turned 256 into 260. 140 plus 260 equals to 400. I subtracted four from 144 and added four to 256. Which will equal to 400.
150 + 250=400
100 plus 50 equals to 150 and 200 plus 50 equals to 250. So, 100 plus 200 equals 300 plus 50 plus 50 adds up to 100. Therefore, 300 plus 100 equals to 400.
150 + 256=406
100 plus 50 equals to 150. 200 plus 60 equals to 260. 150 plus 260 equals to 410, take away four and the answer is 406.
144 + 260=404
100 plus 40 equals to 140. 200 plus 50 equals to 250. So, 140 plus 250 equals to 390 plus 10, plus 4 equals to 404.
I line up the ones, ten and hundreds under one another and add each starting from the ones column. i put the biggest number on top and add. I realized that the first two problems equal the same because they took 6 from 256 and added it to 144.
ReplyDelete144+256=400
150 + 250=400
150 + 256= 406
144 + 260=404
I line up the ones, ten and hundreds under one another and add each starting from the ones column. i put the biggest number on top and add. I realized that the first two problems equal the same because they took 6 from 256 and added it to 144.
Delete144+256=400
150 + 250=400
150 + 256= 406
144 + 260=404
Virtual Number Talk - Omolabake Ogunro
Delete1. 144 + 256
Let’s round one number to make this easier.
144 is close to 150, so:
150 + 256 = 406
But we added 6 extra (because 144 is 6 less than 150), so:
406 - 6 = 400
In conclusion, the addition of 144 and 256 is equal to 400.
2. 150 + 250
Both numbers have tens in them which are 5 tens (50) and 5 tens (50)
150 + 250 = 400
In conclusion, the addition of 150 and 250 is equal to 400.
3. 150 + 256
Break apart 256: 250 + 6
150 + 250 = 400
Then add 6 more:
400 + 6 = 406
In conclusion, the addition of 150 and 256 is equal to 406.
4. 144 + 260
Break apart 144 which will be
140 + 4 = 144
(140 + 260) + 4 = 400 + 4 = 404
In conclusion, the addition of 144 and 260 is equal to 404.