Using the 100's Chart for mental math addition and subtraction

Using the 100's Chart for mental math addition and subtraction

I have had several parents wonder whats going on in math lately, our mental math unit is attempting to show our students how to add and subtract using a 100's chart.

Using the 100's Chart for mental math addition and subtraction

To add two numbers using "mental math", we have to remember several steps:

34 + 25 = 

1. Locate 34  then ,
2. realize that 25 is two tens and 5 ones
3. tens travel on the 100's chart by being the next number under the beginning number. For example 44,54
4. Now you have 5 ones travel right on the chart...55,56,57,58,59
5. The answer to 34 + 25 =  is 59

Let's try subtracting!

53 - 27 =

1. locate 53
2. realize that 27 is 2 tens and 7 ones
3. so we move up the column from 53
4. 43,33
5. and now move 7 ones left from 33
6. 32,31,30,29,28,27,26
7. 26 is the answer

We still haven't taught our kids how to subtract by "borrowing" or add by "carrying" yet...however even that's been changed to "regrouping"....lol...

Thanks Parents and Readers for all you do with your kids....

Mr. F

November 11, 2013

November 11, 2013 Homework

Math workbook pg 6.1	Math workbook pg 6.2	Math Unit 6.3	Math workbook 6.4	Math workbook 6.5	Math unit "Mental Addition"
Reading Violet's Music	Reading  Violet's Music	Reading  Violet's Music	Reading Violet's Music	Reading Comprehension test	You may link to the textbook on line
sign here	sign here	sign here	sign here	sign here	Children must read aloud 5 minutes every day. Please sign that reading has been done.
Spelling 5x each	Spelling vocabulary flash cards.	Spelling  ABC order  study spelling words	Spelling study spelling words	Spelling spelling test	You May link to spelling city from here.
Language/ Write each spelling word in a sentence	Language/   Study High Frequency words	Language/  vocabulary search: Matching	Language	Language/  Vocabulary definition test	Language/  access HF from spelling city
Social Studies	Social Studies	Social Studies	Social Studies	Social Studies	Did your child turn in their election poster?
Basic words 1. gray 2. stay 3. clay 4. paint 5. birthday 6. pay 7. away 8. pail 9. plain 10. hay 11. train 12. tray	Review 13. day 14. wait Challenge 15. stain 16.   raisin	High Frequency Words  (must be able to read) 1. against 2. along 3. bird 4. morning 5. night 6. different 7. part 8. hold 9. girl 10. someone	Target Vocabulary : must be able to define: see flashcards 1. shake 2. alone 3. smooth 4. hours 5. real 6. museum 7. nursery 8. whenever		Check out our blog for latest class information:  http://fierros2nd.blogspot.com Texas Journeys    press this to view and hear our reading story Student must be able to read all words from:Spelling, Vocabulary and High Frequency lists

Fall Festival November 8

2nd Grade Sausage Booth 

Mission Academy’s 2^nd Grade really needs your help with the following items

1._______      $5.00 donation to purchase Sausage and items for the Sausage booth

2. ________   Aluminum foil sheets.  (comes in a square box )

3.________    Napkins

4.________     Big bag of Candy for fish pond

5. _______      trinkets for fish pond

6. _________       Volunteers: Name:_______________________________________

                                `               Number:_______________________________________

Turn in by Thursday.November 7

2nd Grade Sausage Booth

2nd Grade Sausage Booth 

Mission Academy’s 2^nd Grade really needs your help with the following items

1._______      $5.00 donation to purchase Sausage and items for the Sausage booth

2. ________   Aluminum foil sheets.  (comes in a square box )

3.________    Napkins

4.________     Big bag of Candy for fish pond

5. _______      trinkets for fish pond

6. _________       Volunteers: Name:_______________________________________

                                `               Number:_______________________________________

Turn in by Thursday.November 7

Week of November 4, 2013: Homework

Week of November 4, 2013: Homework

Monday	Tuesday	Wednesday	Thursday	Friday
Math Unit 12.1	Math Unit 12.2	Math Unit 12.3	Math Unit 12.4	Math Unit 12.5
Reading Click, Clack, Moo	Reading Click,Clack,Moo	Reading Click, Clack, Moo	Reading Click, Clack, Moo	Reading Comprehension test	You may link to the textbook on line
sign here	sign here	sign here	sign here	sign here	Children must read aloud 8 minutes every day. Please sign that reading has been done.
Spelling 5x each	Spelling vocabulary flash cards.	Spelling  ABC order  study High Frequency Words	Spelling study spelling words	Spelling spelling test	You May link to spelling city from here.
Language/ Spelling Sentences must be rule of 7	Language/   Study High Frequency words	Language/  vocabulary search: Matching	Language	Language/  Vocabulary definition test	Language/  access HF from spelling city
Social Studies	Social Studies	Social Studies	Social Studies campaign speech	Social Studies  1st Election Friday	Bring in your election posters. Have your campaign speech ready for  Thursday and Friday.   1st Election Friday
Basic Words 1. hens 2. eggs 3. ducks 4. bikes 5. boxes 6. dresses 7. names 8. bells	9. stamps 10. dishes 11. wishes 12. grapes Review 13. jets 14. frogs Challenge 15. stitches 16. fences	High Frequency Words  (must be able to read, test every Thursday) 1. another 2. far 3. grow 4. hard 5. heard 6. kind 7. light 8. more 9. some  10. to	Target Vocabulary : must be able to define: see flashcards 1. understand 2. gathered 3. impatient 4. impossible 5. believe 6. problem 7. demand 8. furious		Check out our blog for latest class info:http://fierros2nd.blogspot.com Texas Journeys    press this to view and hear our reading story

Rule of 7:  all sentences must be at least seven words in length.

Remember parent we need a $5.oo donation for our sausage booth.  We also need help with running the sausage and fish pond.  Do you have any small prizes for our fish pond? Donate it!  Candy, mini toys, etc.