Mathematics Grade 2 15 min

Add three numbers up to two digits each: word problems

Add three numbers up to two digits each: word problems

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Introduction & Learning Objectives

Learning Objectives Read and understand a word problem. Find the three numbers to add in a story. Correctly line up three two-digit numbers by place value. Add the ones column and regroup if needed. Add the tens column, including any regrouped number. Write the final answer with a correct label (e.g., 'apples', 'toys'). Imagine you have three jars of candy! ๐Ÿฌ How can we find out how many candies you have in all? Today, we will learn to solve fun story problems. We will find three numbers in a story and add them all together. This helps us count big groups of things! Real-World Applications Counting the total number of toys in different boxes. Finding out how many stickers you have in all. Adding up points in a game with three rounds. Figuring...
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Key Concepts & Vocabulary

TermDefinitionExample Word ProblemA short story that gives you numbers and asks a question. ๐Ÿ“–Leo saw 12 birds. Mia saw 15 birds. Sam saw 10 birds. How many birds did they see in all? AddTo put numbers together to find the total amount. It's also called 'plus'. (+)We add 12 + 15 + 10 to find the total. SumThe answer you get when you add numbers together. It's the total. ๐ŸŒŸThe sum of 10 and 5 is 15. Place ValueKnowing if a digit means ones, tens, or hundreds. It helps us line up numbers.In the number 47, the 4 is in the tens place and the 7 is in the ones place. RegroupingWhen you have 10 or more ones, you make a group of ten and move it to the tens place. ๐Ÿ“ฆIf you add 8 ones and 5 ones, you get 13 ones. That is 1 ten and 3 ones. You regroup the 1 ten. LabelThe word tha...
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Core Formulas

Stacking by Place Value Tens | Ones 2 | 5 1 | 8 + 3 | 0 ------- Always line up the ones with the ones. Line up the tens with the tens. This keeps your numbers neat. Grouping Numbers (a + b) + c = a + (b + c) You can add the first two numbers, then add the third. Or, you can group them in a different way to make it easier! Order Doesn't Matter a + b + c = c + a + b You can add the three numbers in any order you want. The sum will always be the same. ๐Ÿ‘

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Sample Practice Questions

Challenging
Ben has 25 stamps. His sister, Lily, has 10 more stamps than Ben. Their friend, Jake, has 20 stamps. How many stamps do they have altogether?
A.60
B.70
C.80
D.90
Challenging
On Friday, Ava saved 30 cents. On Saturday, she saved 15 cents. On Sunday, she saved 12 more cents than she did on Saturday. How much money did she save in all three days?
A.57 cents
B.60 cents
C.72 cents
D.82 cents
Challenging
A red tower is built with 28 blocks. A blue tower is built with 15 blocks. A green tower is built with as many blocks as the red and blue towers combined. How many blocks were used for all three towers?
A.43
B.71
C.86
D.96

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