Theme Tasks catalog
Making subtraction equations from addition equations
• You will practice finding the sum and difference of two numbers;
• You will learn about the connection between addition and subtraction;
• You will learn to make subtraction equations from addition equations;
• You will practice solving addition and subtraction problems up to 10;
• You will improve your skill to find the length of a line with a ruler and choose the right measurement result.
• You will learn about the connection between addition and subtraction;
• You will learn to make subtraction equations from addition equations;
• You will practice solving addition and subtraction problems up to 10;
• You will improve your skill to find the length of a line with a ruler and choose the right measurement result.
1
Solve. Choose the right numbers.
Solve. Choose the right numbers.
2
Count the blocks to measure each line.
Drag the matching numbers.
Count the blocks to measure each line.
Drag the matching numbers.
3
Solve. Choose the right numbers.
Solve. Choose the right numbers.
4
Count the blocks. Which path is the shortest?
Choose it.
Count the blocks. Which path is the shortest?
Choose it.
5
Drag and drop the correct sign: greater than, less than, or equal to.
Drag and drop the correct sign: greater than, less than, or equal to.
6
Find the whole for each pair.
Drag the correct answers.
Find the whole for each pair.
Drag the correct answers.
7
Add coins to the wallet to make it 8 cents.
Add coins to the wallet to make it 8 cents.
8
Find the missing part.
Drag the correct number.
Find the missing part.
Drag the correct number.
9
Play domino.
Choose the next tiles.
Play domino.
Choose the next tiles.
10
Look at the plums.
There were 6 plums, and 3 more plums were added.
6 plus 3 equals 9.
The numbers 6 and 3 are parts.
The number 9 is the whole.
Addition helps us find the whole if its parts are known.
And subtraction helps find one of the parts if the whole is known.
If you take away one part, 3, from the whole 9, the other part remains:
9 minus 3 equals 6.
If you take away the other part, 6, from the whole 9, the first part remains:
9 minus 6 equals 3.
These 3 equations form a fact family
because they use the same three numbers: 6, 3, and 9.
They show how addition and subtraction work together.
Look at the plums.
There were 6 plums, and 3 more plums were added.
6 plus 3 equals 9.
The numbers 6 and 3 are parts.
The number 9 is the whole.
Addition helps us find the whole if its parts are known.
And subtraction helps find one of the parts if the whole is known.
If you take away one part, 3, from the whole 9, the other part remains:
9 minus 3 equals 6.
If you take away the other part, 6, from the whole 9, the first part remains:
9 minus 6 equals 3.
These 3 equations form a fact family
because they use the same three numbers: 6, 3, and 9.
They show how addition and subtraction work together.
11
Find the incorrect equation in each train car.
Select it.
Find the incorrect equation in each train car.
Select it.
12
Look at the whole and the parts.
Complete the number bonds.
Look at the whole and the parts.
Complete the number bonds.
13
Move the subtraction equations to the matching trucks.
Move the subtraction equations to the matching trucks.
14
Solve. Choose the right numbers.
Solve. Choose the right numbers.
15
Find the subtraction sentences that match each truck.
Move them there.
Find the subtraction sentences that match each truck.
Move them there.
16
Look at the parts.
Find the whole for each group and drag the matching numbers.
Look at the parts.
Find the whole for each group and drag the matching numbers.
17
Look at each addition sentence.
Use it to complete the subtraction sentences.
Drag the missing numbers into the blanks.
Look at each addition sentence.
Use it to complete the subtraction sentences.
Drag the missing numbers into the blanks.
