Theme Tasks catalog
Addition and subtraction of numbers 8 and 9. Difference comparison of segment lengths
• You will practice finding true equalities;
• You will learn how to add and subtract numbers 8 and 9 using a number line;
• You will learn to calculate expressions with addition and subtraction of numbers 8 and 9;
• You will practice solving problems to find the sum, the remainder, to increase a number by a few units, and to compare numbers by difference;
• You will find unknown parts and results of addition and subtraction actions;
• You will learn to compare named numbers shown in units of length – centimeters.
• You will learn how to add and subtract numbers 8 and 9 using a number line;
• You will learn to calculate expressions with addition and subtraction of numbers 8 and 9;
• You will practice solving problems to find the sum, the remainder, to increase a number by a few units, and to compare numbers by difference;
• You will find unknown parts and results of addition and subtraction actions;
• You will learn to compare named numbers shown in units of length – centimeters.
1
Calculate. Choose the needed numbers.
Calculate. Choose the needed numbers.
2
Find the correct equalities. Choose them.
Find the correct equalities. Choose them.
3
Let's see how to add 8 using a number line.
To add 8 to 1,
you need to make 8 steps to the right from 1 on the number line.
You get 9.
Next, we think the same way:
add 8 to 2, you get 10.
Remember the results of adding 8.
Let's see how to add 9 using a number line.
To add 9 to 1,
you need to make 9 steps to the right from 1 on the number line.
You get 10.
Remember the result of adding 9.
Let's see how to add 8 using a number line.
To add 8 to 1,
you need to make 8 steps to the right from 1 on the number line.
You get 9.
Next, we think the same way:
add 8 to 2, you get 10.
Remember the results of adding 8.
Let's see how to add 9 using a number line.
To add 9 to 1,
you need to make 9 steps to the right from 1 on the number line.
You get 10.
Remember the result of adding 9.
4
Look at the number line and make an equality.
Choose the right numbers and signs.
Look at the number line and make an equality.
Choose the right numbers and signs.
5
Fill in the blanks, choose the right numbers.
Fill in the blanks, choose the right numbers.
6
Make a short note and solve the problem.
There are 6 apple trees and 4 plum trees in the garden.
How many fewer plums than apple trees are in the garden?
Make a short note and solve the problem.
There are 6 apple trees and 4 plum trees in the garden.
How many fewer plums than apple trees are in the garden?
7
Fill in the blanks. Choose the right addends.
Fill in the blanks. Choose the right addends.
8
Make a short note and solve the problem.
There were 8 tractors in the garage.
6 tractors went to plow the field.
How many tractors are left in the garage?
Make a short note and solve the problem.
There were 8 tractors in the garage.
6 tractors went to plow the field.
How many tractors are left in the garage?
9
Find the correct equalities. Choose them.
Find the correct equalities. Choose them.
10
Let's see how to subtract 8 using a number line.
To subtract 8 from 9,
you need to make 8 steps to the left from 9 on the number line.
You get 1.
Next, we think the same way:
subtract 8 from 10, you get 2.
Remember the results of subtracting 8.
Let's see how to subtract 9 using a number line.
To subtract 9 from 10,
you need to make 9 steps to the left from 10 on the number line.
You get 1.
Remember the result of subtracting 9.
Let's see how to subtract 8 using a number line.
To subtract 8 from 9,
you need to make 8 steps to the left from 9 on the number line.
You get 1.
Next, we think the same way:
subtract 8 from 10, you get 2.
Remember the results of subtracting 8.
Let's see how to subtract 9 using a number line.
To subtract 9 from 10,
you need to make 9 steps to the left from 10 on the number line.
You get 1.
Remember the result of subtracting 9.
11
Look at the number line and make an equality.
Choose the right numbers and signs.
Look at the number line and make an equality.
Choose the right numbers and signs.
12
Fill in the blanks, choose the right numbers.
Fill in the blanks, choose the right numbers.
13
Choose the minuend. Insert the needed numbers.
Choose the minuend. Insert the needed numbers.
14
Make a short note and solve the problem.
Andriyko has been studying in music school for 3 years, and Oksanka -- for 2 years more.
How many years has Oksanka been studying in music school?
Make a short note and solve the problem.
Andriyko has been studying in music school for 3 years, and Oksanka -- for 2 years more.
How many years has Oksanka been studying in music school?
15
Calculate. Choose the needed numbers.
Calculate. Choose the needed numbers.
16
Insert the sign "greater", "less" or "equals".
Insert the sign "greater", "less" or "equals".
17
Make a short note and solve the problem.
Grandpa Vasyl has 9 white rabbits and 7 gray ones.
How many more white than gray rabbits does Grandpa Vasyl have?
Make a short note and solve the problem.
Grandpa Vasyl has 9 white rabbits and 7 gray ones.
How many more white than gray rabbits does Grandpa Vasyl have?
18
Compare the lengths of the segments.
How much shorter is the first segment than the second?
Compare the lengths of the segments.
How much shorter is the first segment than the second?
19
Compare the lengths of the segments.
How much longer is the second segment than the first?
Compare the lengths of the segments.
How much longer is the second segment than the first?
