You guys are on the right track, but here is a way to explain it: Using the "make a ten" strategy, I would turn the 7 into a 10, by adding 3. Then I can easily solve 15+10 to equal 25. I know, though, that I have to now take away the 3 that I added when I made the 10. So, 25-3 = 22. Now I know that 15+7=22.
You all still need to go back and tell me another strategy you could use to solve the same problem. Use your notes to help you!
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ReplyDelete.
15+7= then you turn the 7 in to a 10.Next you do 15+10=25.
ReplyDeleteTurn the seven into a twelve and Turn the fivteen into a ten. e.b.c
ReplyDeleteTurn the seven in to a ten and turn the fifthteen in to a tolve. Then do tolve plues seven and that ecoles twontiytwo.
ReplyDeleteew
You guys are on the right track, but here is a way to explain it:
ReplyDeleteUsing the "make a ten" strategy, I would turn the 7 into a 10, by adding 3. Then I can easily solve 15+10 to equal 25. I know, though, that I have to now take away the 3 that I added when I made the 10. So, 25-3 = 22. Now I know that 15+7=22.
You all still need to go back and tell me another strategy you could use to solve the same problem. Use your notes to help you!
-Mrs. McMahan
You take the 7 and take 3 away from the 15 and the 7 will be a 10 so 10+12=22.
ReplyDelete17+5= now you change the 17 to twenty and do 20+5=25 and then subtract 3 from 20 and you get 22.
ReplyDelete