Theme Tasks catalog
Addition and subtraction of the number 3
• You will learn to find the sum of three addends;
• You will find out how to do addition and subtraction of the number 3 using a number line;
• You will practice calculating expressions with addition and subtraction of the number 3;
• You will find unknown parts and results of addition and subtraction;
• You will solve problems to find the sum, the difference, and to increase a number by a few units;
• You will practice comparing an expression and a number.
• You will find out how to do addition and subtraction of the number 3 using a number line;
• You will practice calculating expressions with addition and subtraction of the number 3;
• You will find unknown parts and results of addition and subtraction;
• You will solve problems to find the sum, the difference, and to increase a number by a few units;
• You will practice comparing an expression and a number.
1
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
2
Let's see how to add the number 3 using a number line.
For example, to add 3 to 1,
you need to make 3 steps to the right from 1 on the number line.
We get 4.
Next, we think the same way:
add 3 to two – we get 5,
add 3 to three – we get 6,
add 3 to four – we get 7,
add 3 to five – we get 8,
add 3 to six – we get 9,
add 3 to seven – we get 10.
Remember the results of adding the number 3.
Let's see how to add the number 3 using a number line.
For example, to add 3 to 1,
you need to make 3 steps to the right from 1 on the number line.
We get 4.
Next, we think the same way:
add 3 to two – we get 5,
add 3 to three – we get 6,
add 3 to four – we get 7,
add 3 to five – we get 8,
add 3 to six – we get 9,
add 3 to seven – we get 10.
Remember the results of adding the number 3.
3
Use the number lines. Drag the correct numbers to complete the equations.
Use the number lines. Drag the correct numbers to complete the equations.
4
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
5
Add the parts to find the whole. Drag the correct numbers.
Add the parts to find the whole. Drag the correct numbers.
6
Find the missing part. Drag the correct answers.
Find the missing part. Drag the correct answers.
7
Listen to the story Problem.
Sam has 6 pencils and 3 markers on his desk.
How many art supplies does Sam have in all?
Complete the number bond. Drag the numbers from the story.
Listen to the story Problem.
Sam has 6 pencils and 3 markers on his desk.
How many art supplies does Sam have in all?
Complete the number bond. Drag the numbers from the story.
8
Choose the addends. Put in the correct numbers.
Choose the addends. Put in the correct numbers.
9
Find the missing part. Drag the correct answers.
Find the missing part. Drag the correct answers.
10
Let's see how to subtract 3 using a number line.
For example, to subtract 3 from 5,
you need to make 3 steps to the left from 5 on the number line.
You get 2.
Next, we think the same way:
subtract 3 from four – you get 1,
subtract 3 from five – you get 2,
subtract 3 from six – you get 3,
subtract 3 from seven – you get 4,
subtract 3 from eight – you get 5,
subtract 3 from nine – you get 6,
subtract 3 from ten – you get 7.
Remember the results of subtracting 3.
Let's see how to subtract 3 using a number line.
For example, to subtract 3 from 5,
you need to make 3 steps to the left from 5 on the number line.
You get 2.
Next, we think the same way:
subtract 3 from four – you get 1,
subtract 3 from five – you get 2,
subtract 3 from six – you get 3,
subtract 3 from seven – you get 4,
subtract 3 from eight – you get 5,
subtract 3 from nine – you get 6,
subtract 3 from ten – you get 7.
Remember the results of subtracting 3.
11
Use the number lines. Drag the correct numbers to complete the equations.
Use the number lines. Drag the correct numbers to complete the equations.
12
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
13
Subtract to find the missing part. Drag the correct numbers.
Subtract to find the missing part. Drag the correct numbers.
14
Complete the equations. Drag the correct numbers.
Complete the equations. Drag the correct numbers.
15
Listen to the story Problem.
There are 8 soccer balls in the big basket. The kids took 3 balls out to play on the field.
How many soccer balls are left in the basket?
Complete the number bond. Drag the numbers from the story.
Listen to the story Problem.
There are 8 soccer balls in the big basket. The kids took 3 balls out to play on the field.
How many soccer balls are left in the basket?
Complete the number bond. Drag the numbers from the story.
16
Count the cents in each group. Drag the matching numbers.
Count the cents in each group. Drag the matching numbers.
17
Choose the minuend.
Put in the correct numbers.
Choose the minuend.
Put in the correct numbers.
18
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
19
Write a short note and solve the problem.
The chef made 4 cakes with cream, and with chocolate cream — 5 more.
How many cakes with chocolate cream did the chef make?
Write a short note and solve the problem.
The chef made 4 cakes with cream, and with chocolate cream — 5 more.
How many cakes with chocolate cream did the chef make?
20
Compare the expression and the number.
Drag the correct comparison symbol.
Compare the expression and the number.
Drag the correct comparison symbol.
