3-
Adding Together and Adding More
1 Adding Together ⑴
Example How many balls are there if you put them together?
2 ＋ 1 ＝ 3
Answer 3 balls
1 Write the plus symbol.
＋＋＋＋＋＋
❷
❶
2 Write the equal symbol.
＝＝＝＝＝＝
❶
3 Read the following questions and find the answers.
1 How many hats are there if you put them together?
3＋2＝ 5
Answer 5 hats
2 How many horses are there if you put them together?
2＋2＝ 4
Answer 4 horses
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3 How many T-shirts are there if you put them together?
1＋3＝ 4
Answer 4 T-shirts
4 How many bananas are there if you put them together?
4＋1＝ 5
Answer 5 bananas
5 How many pencils are there if you put them together?
2＋3＝ 5
Answer 5 pencils
6 How many tomatoes are there if you put them together?
1＋2＝ 3
Answer 3 tomatoes
7 How many cups of coffee are there if you put them
together?
3＋1＝ 4
Answer cups
4 of coffee
8 How many books are there of you put them together?
1＋4＝ 5
Answer 5 books
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3-2
Adding Together and Adding More
Adding Together ⑵
Example Write this as math sentence and find the answer.
1 ＋ 2 ＝ 3
Answer 3 watches
Write these as math sentences and find the answers.
1 1＋ 1 ＝ 2
Answer 2 rabbits
2 4＋ 1 ＝ 5
Answer 5 guitars
3 3＋ 1 ＝ 4
Answer 4 watermelons
4 2＋ 1 ＝ 3
Answer 3 vases
5 1＋ 3 ＝ 4
Answer 4 bicycles
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3-3
Adding Together and Adding More
Adding More ⑴
Example How many pens are there if you add two more pens?
3 ＋ 2 ＝ 5
Answer 5 pens
Read the following questions and find the answers.
1 How many birds are there if one bird comes?
2＋1＝ 3
Answer 3 birds
2 How many glasses of juice are there if you order three
more?
1＋3＝ 4
Answer glasses
4
of juice
3 How many buses are there if two more buses come?
2＋2＝ 4
Answer 4 buses
4 How many carrots are there if you add one more?
4＋1＝ 5
Answer 5 carrots
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3-4
Adding Together and Adding More
Adding More ⑵
Example How many cars are there if two more cars come?
5 ＋ 2 ＝ 7
Answer 7 cars
Read the following questions and find the answers.
1 How many flowers are there if you plant three more?
4＋ 3 ＝ 7
Answer 7 flowers
2 How many rabbits are there if two more rabbits come?
4＋ 2 ＝ 6
Answer 6 rabbits
3 How many bananas are there if you buy four more?
4＋ 4 ＝ 8
Answer 8 bananas
4 How many loaves of bread are there if you bake one
more?
8＋ 1 ＝ 9
Answer 9 loaves
of bread
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3-5
Adding Together and Adding More
Addition ⑴
Example Solve these addition problems.
1 3 ＋ 1 ＝ 4 2 1 ＋ 2 ＝ 3
Solve these addition problems.
1 7＋2＝ 9 2 3＋4＝ 7
3 6＋2＝ 8 4 3＋6＝ 9
5 2＋5＝ 7 6 7＋1＝ 8
7 5＋1＝ 6 8 1＋3＝ 4
9 5＋2＝ 7 10 2＋7＝ 9
11 1＋6＝ 7 12 3＋5＝ 8
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3-6
Adding Together and Adding More
Addition ⑵
Example Solve these addition problems.
1 1 ＋ 7 ＝ 8 2 2 ＋ 5 ＝ 7
Solve these addition problems.
1 1＋2＝ 3 2 1＋4＝ 5
3 2＋6＝ 8 4 4＋2＝ 6
5 4＋1＝ 5 6 3＋1＝ 4
7 5＋4＝ 9 8 2＋4＝ 6
9 6＋1＝ 7 10 2＋2＝ 4
11 3＋2＝ 5 12 4＋5＝ 9
13 1＋8＝ 9 14 7 ＋ 3 ＝ 10
15 5 ＋ 5 ＝ 10 16 1＋5＝ 6
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3-7
Adding Together and Adding More
Review ⑴
1 Write these as math sentences and find the answers.
1 How many cupcakes are there if you put them together?
3＋ 2 ＝ 5
Answer 5 cupcakes
2 How many cupcakes are there if you put them together?
4＋ 0 ＝ 4
Answer 4 cupcakes
2 Solve these addition problems.
1 5＋1＝ 6 2 1 ＋ 8＝ 9
3 3＋2＝ 5 4 2＋6＝ 8
5 6＋1＝ 7 6 7＋2＝ 9
7 5＋3＝ 8 8 3＋4＝ 7
9 4＋1＝ 5 10 6 ＋ 0＝ 6
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3-8
Adding Together and Adding More
Review ⑵
1 Write these as math sentences and find the answers.
1 There are two cups of tea. One more cup of tea is
ordered. How many cups of tea are there now?
2 ＋ 1 ＝ 3
Answer 3 cups of tea
2 There are four notebooks. Two more notebooks are
bought. How many notebooks are there now?
4 ＋ 2 ＝ 6
Answer 6 notebooks
3 There are three flowers. Three more are put in the
vase. How many flowers are there altogether?
3 ＋ 3 ＝ 6
Answer 6 flowers
2 Solve these addition problems.
1 5＋4＝ 9 2 4 ＋ 6 ＝ 10
3 9 ＋ 1 ＝ 10 4 4＋3＝ 7
5 3＋0＝ 3 6 0＋ 9 ＝ 9
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3-9
Adding Together and Adding More
Review ⑶
1 Write these as math sentences and find the answers.
1 I have five pieces of candy. My brother has three
pieces of candy. How many The math sentence
is, for example,
candies are there together? 1＋1＝2.
Math
Sentence 5 ＋ 3 ＝ 8 Answer 8 pieces of
candy
2 I have four caps at home. I bought two more caps.
How may caps do I have now?
Math
Sentence 4 ＋ 2 ＝ 6 Answer 6 caps
3 There are three ducks in the pond. Four more ducks
come. How may ducks are there in the pond?
Math
Sentence 3 ＋ 4 ＝ 7 Answer 7 ducks
2 Solve these addition problems.
1 7＋2＝ 9 2 5＋1＝ 6
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