Place Values and Properties of Operations

Place Values and Properties of Operations

Description: Online Worksheet for CCSS.Math.Content.2.NBT.B.9 Explain why addition and subtraction strategies work, using place value and the properties of operations.1

Tags: CCSS.Math.Content.2.NBT.B.9 2nd Grade, 2nd grade math, Addition, Subtraction

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⎙ Print Exercise Worksheet
Question 1 (Multiple Choice, 10 points)

Why does setting 5 carrots in one row and 3 carrots in the second row give us 8 carrots in total?










Question 2 (Short Answer, 10 points)

How can we use place value to subtract 7 flowers from a bundle of 12 flowers?



Question 3 (Short Answer, 10 points)

If you sow 10 seeds in each garden bed and have 4 beds, how many seeds will you sow in total?



Question 4 (Short Answer, 10 points)

If you had 10 birds and 5 flew away, why are there only 5 birds left?



Question 5 (Short Answer, 10 points)

After putting 4 eggs in a basket, someone added 3 more. Why does the basket now have 7 eggs?



Question 6 (Short Answer, 10 points)

Why does having two garden tools in a wheelbarrow and adding three more give you five garden tools in total?



Question 7 (Short Answer, 10 points)

If there were 10 bees in a birdhouse and 5 flew away, why are there only 5 bees left?



Question 8 (Short Answer, 10 points)

How do we use place value to add 21 ladybugs to a group of 18 ladybugs?



Question 9 (Short Answer, 10 points)

If you count 2 flowers in one part of the garden and 8 in another, how many flowers do you have in total?



Question 10 (Short Answer, 10 points)

Why does having three rainbows in the sky, and seeing two more, result in seeing five rainbows in total?