Theme Tasks catalog
Subtraction with regrouping within 20
• You will improve your skills in calculating expressions with one and two operations within 20;
• You will learn how to do subtraction within 20 with regrouping;
• You will learn to subtract one-digit numbers with regrouping by breaking numbers into easy parts;
• You will practice changing named numbers written in decimeters and centimeters;
• You will write a short note and solve problems.
• You will learn how to do subtraction within 20 with regrouping;
• You will learn to subtract one-digit numbers with regrouping by breaking numbers into easy parts;
• You will practice changing named numbers written in decimeters and centimeters;
• You will write a short note and solve problems.
1
Insert the sign greater, less or equal.
Insert the sign greater, less or equal.
2
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
3
Increase each number by one. Choose the correct numbers.
Increase each number by one. Choose the correct numbers.
4
Write a short note and solve the problem.
Yana bought watercolor paints for 10 hryvnias and an album for 6 hryvnias.
How much money did Yana pay for the purchase?
Write a short note and solve the problem.
Yana bought watercolor paints for 10 hryvnias and an album for 6 hryvnias.
How much money did Yana pay for the purchase?
5
Fill in the blanks, choose the correct numbers.
Fill in the blanks, choose the correct numbers.
6
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
7
How to calculate the expression 15 minus 7?
You need to break the number 7 into easy parts.
How exactly?
The first part should be such that after subtracting it, 10 is left.
So we break 7 into 5 and 2.
15 minus 5 is 10.
10 minus 2 equals 8.
Let's do the task together.
Let's calculate the expression by breaking the numbers into easy parts.
Look at the screen.
We need to calculate the expression 14 minus 6.
First, break the number 6 into easy parts.
The first part should be such that after subtracting it, 10 is left.
So we break 6 into 4 and 2.
Drag the correct numbers into the empty boxes.
14 minus 4 is 10.
10 minus 2 equals 8.
Drag the correct numbers into the empty boxes.
Do the next tasks by yourself.
How to calculate the expression 15 minus 7?
You need to break the number 7 into easy parts.
How exactly?
The first part should be such that after subtracting it, 10 is left.
So we break 7 into 5 and 2.
15 minus 5 is 10.
10 minus 2 equals 8.
Let's do the task together.
Let's calculate the expression by breaking the numbers into easy parts.
Look at the screen.
We need to calculate the expression 14 minus 6.
First, break the number 6 into easy parts.
The first part should be such that after subtracting it, 10 is left.
So we break 6 into 4 and 2.
Drag the correct numbers into the empty boxes.
14 minus 4 is 10.
10 minus 2 equals 8.
Drag the correct numbers into the empty boxes.
Do the next tasks by yourself.
8
Calculate the expressions by breaking the numbers into easy parts.
Calculate the expressions by breaking the numbers into easy parts.
9
Write a short note and solve the problem.
Olenka ate 10 cherries, and Serhiyko ate 12.
How many fewer cherries did Olenka eat than Serhiyko?
Write a short note and solve the problem.
Olenka ate 10 cherries, and Serhiyko ate 12.
How many fewer cherries did Olenka eat than Serhiyko?
10
Do the conversion as in the example, choose the correct numbers.
Do the conversion as in the example, choose the correct numbers.
11
Calculate. Choose the correct numbers.
Calculate. Choose the correct numbers.
12
Write a short note and solve the problem.
Dad bought 12 kilograms of vegetables at the market,
8 kilograms of cabbage and some kilograms of carrots.
How many kilograms of carrots did dad buy?
Write a short note and solve the problem.
Dad bought 12 kilograms of vegetables at the market,
8 kilograms of cabbage and some kilograms of carrots.
How many kilograms of carrots did dad buy?
