Download Writing and Solving Word Problems 1.3.1 Write and solve number

Writing and Solving Number
Sentences from Word Problems
1.3.1 Write and solve number sentences from
problem situations involving addition and
subtraction.
By: Phylicia Kelly
Listen Carefully!!
If 4 people get onto a bus,
and 2 people get off the bus. How many people
are on the bus?
Writing the Number Sentence
• If 4 people get onto a bus, and 2 people get off.
How many people are still on the bus?
• Will this be an addition or subtraction problem?
• How do you write the number sentence?
• 4-2=__ (Number Sentence)
What is the answer?
2 people
Listen Carefully!
If 5 dogs run into a dog house,
and 3 more dogs run into the dog house. How many
dogs are in the dog house?
Writing the Number Sentence
• If 5 dogs run into a doghouse, and 3 more run
into the doghouse. How many dogs are in the
doghouse?
• Will this be an addition or subtraction problem?
• How do you write the number sentence?
• 5+3=__ (Number Sentence)
What is the answer?
8 dogs
Make an Addition and Subtraction
Problem in Words
Word Problems for Homework
*Song*: Word Prolems
(To the tune Yankee Doodle)
• When you have a word problem and it is sub-trac-tion,
• Always take the smaller number from the bigger num-ber.
• If you don’t have subtraction then you have ad-di-tion.
• Add the two numbers together and you get the ans-wer.
Lyrics to Yankee Doodle
• Yankee Doodle went to town riding on a po-ny.
• Stuck a feather in his cap and called it mac-a-ron-i.
• Yankee Doodle keep it up, Yankee Doodle dandy
• Mind the music and the step and let the girls be han-dy.
THE END