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
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.
Remember!
To add any number on a number line, move to the right the same number of steps as the number you are adding.
Look how it works with other numbers:
add 2 to one – you get 3;
add 2 to two – you get 4;
add 2 to three – you get 5;
add 2 to four – you get 6;
add 2 to five – you get 7;
add 2 to six – you get 8;
add 2 to seven – you get 9;
add 2 to eight – 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.
Remember!
To add any number on a number line, move to the right the same number of steps as the number you are adding.
Look how it works with other numbers:
add 2 to one – you get 3;
add 2 to two – you get 4;
add 2 to three – you get 5;
add 2 to four – you get 6;
add 2 to five – you get 7;
add 2 to six – you get 8;
add 2 to seven – you get 9;
add 2 to eight – you get 10.
Remember the results of adding 2.
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
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
Listen to the story Problem.
Emma has 4 chocolate cookies and 3 vanilla cookies.
How many cookies does Emma have altogether?
Complete the number bond. Drag the numbers from the story.
Listen to the story Problem.
Emma has 4 chocolate cookies and 3 vanilla cookies.
How many cookies does Emma have altogether?
Complete the number bond. Drag the numbers from the story.
11
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.
Remember!
To subtract any number on a number line, move left the same number of steps as the number you are subtracting.
Look how it works with other numbers:
3 minus 2 is 1.
4 minus 2 is 2.
5 minus 2 is 3.
6 minus 2 is 4.
7 minus 2 is 5.
8 minus 2 is 6.
9 minus 2 is 7.
10 minus 2 is 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.
Remember!
To subtract any number on a number line, move left the same number of steps as the number you are subtracting.
Look how it works with other numbers:
3 minus 2 is 1.
4 minus 2 is 2.
5 minus 2 is 3.
6 minus 2 is 4.
7 minus 2 is 5.
8 minus 2 is 6.
9 minus 2 is 7.
10 minus 2 is 8.
Remember the results of subtracting 2.
12
Use the number lines. Drag the correct numbers to complete the equations.
Use the number lines. Drag the correct numbers to complete the equations.
13
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
14
Subtract to find the missing part. Drag the correct numbers.
Subtract to find the missing part. Drag the correct numbers.
15
Complete the equations.
Drag the correct numbers.
Complete the equations.
Drag 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
Listen to the story Problem.
There were 9 apples in the basket. 5 apples were eaten.
How many apples are left?
Complete the number bond. Drag the numbers from the story.
Listen to the story Problem.
There were 9 apples in the basket. 5 apples were eaten.
How many apples are left?
Complete the number bond. Drag the numbers from the story.
20
Compare the expression and the number.
Drag the correct comparison symbol.
Compare the expression and the number.
Drag the correct comparison symbol.
