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
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
3
Let's see how to add 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.
You get 4.
Next, we think the same way:
add 3 to 2, you get 5,
add 3 to 3, you get 6,
add 3 to 4, you get 7,
add 3 to 5, you get 8,
add 3 to 6, you get 9,
add 3 to 7, you get 10.
Remember the results of adding 3.
Let's see how to add 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.
You get 4.
Next, we think the same way:
add 3 to 2, you get 5,
add 3 to 3, you get 6,
add 3 to 4, you get 7,
add 3 to 5, you get 8,
add 3 to 6, you get 9,
add 3 to 7, you get 10.
Remember the results of adding 3.
4
Do the calculation using the number line. Choose the correct numbers.
Do the calculation using the number line. Choose the correct numbers.
5
Fill in the blanks. Choose the correct numbers.
Fill in the blanks. Choose the correct numbers.
6
Choose the addends. Put in the correct numbers.
Choose the addends. Put in the correct numbers.
7
Write a short note and solve the problem.
There are 6 chanterelle mushrooms and 3 white mushrooms in the basket.
How many mushrooms are in the basket?
Write a short note and solve the problem.
There are 6 chanterelle mushrooms and 3 white mushrooms in the basket.
How many mushrooms are in the basket?
8
Choose the addends. Put in the correct numbers.
Choose the addends. Put in the correct numbers.
9
Fill in the blanks. Choose the correct numbers.
Fill in the blanks. Choose the correct numbers.
10
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
11
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 4, you get 1,
subtract 3 from 5, you get 2,
subtract 3 from 6, you get 3,
subtract 3 from 7, you get 4,
subtract 3 from 8, you get 5,
subtract 3 from 9, you get 6,
subtract 3 from 10, 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 4, you get 1,
subtract 3 from 5, you get 2,
subtract 3 from 6, you get 3,
subtract 3 from 7, you get 4,
subtract 3 from 8, you get 5,
subtract 3 from 9, you get 6,
subtract 3 from 10, you get 7.
Remember the results of subtracting 3.
12
Do the calculation using the number line. Choose the correct numbers.
Do the calculation using the number line. Choose the correct numbers.
13
Fill in the blanks. Choose the correct numbers.
Fill in the blanks. Choose the correct numbers.
14
Choose the minuend.
Put in the correct numbers.
Choose the minuend.
Put in the correct numbers.
15
Solve the problem.
There were 8 apples on a young apple tree.
Worms lived in 3 apples.
How many apples without worms are left on the tree?
Solve the problem.
There were 8 apples on a young apple tree.
Worms lived in 3 apples.
How many apples without worms are left on the tree?
16
Count the coins. Choose the correct numbers.
Count the coins. Choose the correct 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.
Put the sign "greater", "less" or "equals".
Compare the expression and the number.
Put the sign "greater", "less" or "equals".
