Theme Tasks catalog
Adding and subtracting 2. Comparing an expression and a number
• You will learn how to add and subtract 2 using a number line;
• You will improve your skills in adding and subtracting 1, 2, and 0;
• You will practice finding unknown parts and results of addition and subtraction;
• You will learn to compare an expression and a number;
• You will play the game "Domino".
• You will improve your skills in adding and subtracting 1, 2, and 0;
• You will practice finding unknown parts and results of addition and subtraction;
• You will learn to compare an expression and a number;
• You will play the game "Domino".
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 2 using a number line.
For example, to add 2 to 3,
you need to make 2 steps to the right from 3 on the number line.
You get 5.
Take note.
To add any number on the number line, you need to move right as many steps as the number you add.
Next, we think the same way:
add 2 to 1, you get 3,
add 2 to 2, you get 4,
add 2 to 3, you get 5,
add 2 to 4, you get 6,
add 2 to 5, you get 7,
add 2 to 6, you get 8,
add 2 to 7, you get 9,
add 2 to 8, you get 10.
Remember the results of adding 2.
Let's see how to add 2 using a number line.
For example, to add 2 to 3,
you need to make 2 steps to the right from 3 on the number line.
You get 5.
Take note.
To add any number on the number line, you need to move right as many steps as the number you add.
Next, we think the same way:
add 2 to 1, you get 3,
add 2 to 2, you get 4,
add 2 to 3, you get 5,
add 2 to 4, you get 6,
add 2 to 5, you get 7,
add 2 to 6, you get 8,
add 2 to 7, you get 9,
add 2 to 8, you get 10.
Remember the results of adding 2.
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. Insert the correct numbers.
Choose the addends. Insert the correct numbers.
7
Find the biggest number.
Choose it.
Find the biggest number.
Choose it.
8
Choose the addends. Insert the correct numbers.
Choose the addends. Insert the correct numbers.
9
Fill in the blanks. Choose the correct numbers.
Fill in the blanks. Choose the correct numbers.
10
Make a short note and solve the problem.
Halynka brought 4 tomatoes and 5 cucumbers from the garden.
How many vegetables did Halynka bring from the garden?
Make a short note and solve the problem.
Halynka brought 4 tomatoes and 5 cucumbers from the garden.
How many vegetables did Halynka bring from the garden?
11
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
12
Let's see how to subtract 2 using a number line.
For example, to subtract 2 from 5,
you need to make 2 steps to the left from 5 on the number line.
You get 3.
Take note.
To subtract any number on the number line, you need to move left as many steps as the number you subtract.
Next, we think the same way:
subtract 2 from 3, you get 1,
subtract 2 from 4, you get 2,
subtract 2 from 5, you get 3,
subtract 2 from 6, you get 4,
subtract 2 from 7, you get 5,
subtract 2 from 8, you get 6,
subtract 2 from 9, you get 7,
subtract 2 from 10, you get 8.
Remember the results of subtracting 2.
Let's see how to subtract 2 using a number line.
For example, to subtract 2 from 5,
you need to make 2 steps to the left from 5 on the number line.
You get 3.
Take note.
To subtract any number on the number line, you need to move left as many steps as the number you subtract.
Next, we think the same way:
subtract 2 from 3, you get 1,
subtract 2 from 4, you get 2,
subtract 2 from 5, you get 3,
subtract 2 from 6, you get 4,
subtract 2 from 7, you get 5,
subtract 2 from 8, you get 6,
subtract 2 from 9, you get 7,
subtract 2 from 10, you get 8.
Remember the results of subtracting 2.
13
Do the calculation using the number line. Choose the correct numbers.
Do the calculation using the number line. Choose the correct numbers.
14
Fill in the blanks. Choose the correct numbers.
Fill in the blanks. Choose the correct numbers.
15
Choose the minuend.
Insert the correct numbers.
Choose the minuend.
Insert the correct numbers.
16
Play domino. Choose the correct tiles.
Play domino. Choose the correct tiles.
17
Choose the minuend.
Insert the correct numbers.
Choose the minuend.
Insert the correct numbers.
18
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
19
Make a short note and solve the problem.
There were 9 children playing on the playground.
5 of them went home.
How many children stayed on the playground?
Make a short note and solve the problem.
There were 9 children playing on the playground.
5 of them went home.
How many children stayed on the playground?
20
Compare the expression and the number.
Insert the sign "greater", "less" or "equals".
Compare the expression and the number.
Insert the sign "greater", "less" or "equals".
