# Add to with change unknown math stories

Videos to help Grade 1 students learn how to solve add to with change unknown math stories with addition and relate to subtraction. Model with materials and write corresponding number sentences.

Common Core Standards: 1.OA.1, 1.OA.4, 1.OA.5

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Lesson Plans and Worksheets for Grade 1

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## New York State Common Core Math Module 1, Grade 1, Lesson 25

Module 1 Topic G: Subtraction as an Unknown Addend Problem

Lesson 25 Homework

Break the total into parts. Write a number bond and addition and subtraction number sentences to match the story.
1. Six flowers bloomed on Monday. Some more bloomed on Tuesday. Now there are 8 flowers. How many flowers bloomed on Tuesday?
4. Jim invites 9 friends to his party. 3 friends arrived late, but the rest came early. How many friends came early?

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