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Grade 2 Math Β· World 3: Hundred Harbor Β· Level 34
Story Problems: Add To and Take From
Solve and write an equation with a ? for the unknown.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 34
- Story problems are math in real life! Read carefully: what happens in the story?
- Maya has 34 stickers. Maya gets 25 more. How many now? Maya gets more, so we add. The ? stands for what we don't know.
- 34 plus 25 is 59. Maya has 59 stickers now!
- Leo has 62 marbles and gives some away. Now Leo has 40. How many were given away? We know the whole and one part.
- Count up from 40 to 62: that's 22. Leo gave away 22 marbles.
- Sometimes we don't know the start! Ava had some books, got 15 more, and now has 41. 41 minus 15 is 26. Ava had 26 at first.
Georgia's K-12 Mathematics Standards:
- 2.NR.2.3 β Solve problems involving the addition and subtraction of two-digit numbers using part-whole strategies.