Theme   Tasks catalog

Adding a one-digit number to a two-digit number (45 + 2). Subtracting a one-digit number from a two-digit number (45 – 2)


• You will practice adding and subtracting round numbers up to 100;
• You will learn ways to add and subtract a one-digit number like 45 + 2, 45 – 2;
• You will solve problems to find the unknown addend, remainder, and compare numbers;
• You will calculate expressions with addition and subtraction up to 100;
• You will practice comparing a number and an expression;
• You will practice counting money.


1
Calculate. Choose the correct numbers.
2
Choose the neighbor numbers.
3
Solve the chain examples.
Help the baby panda get to its mom.
4
Make a short note and solve the problem.
There were 20 passengers in the tram.
At the 'Kvitneva' stop, some more passengers got on.
After that, there were 23 passengers.
How many passengers got on at the 'Kvitneva' stop?
5
Put the sign greater, less or equal.
6
Fill in the missing numbers.
7
Calculate. Choose the correct numbers.
8
Make a short note and solve the problem.
There were 69 meters of wire in the coil.
The master cut off 20 meters.
How many meters of wire are left in the coil?
9
Calculate. Choose the correct numbers.
10
Find the number of tens and ones. Choose the correct numbers.
11
Calculate. Choose the correct numbers.
12
Count the money and choose the correct numbers.
13
Make a short note and solve the problem.
The farmer has 56 sheep and 30 cows.
How many more sheep does the farmer have than cows?
14
How do you add 2 to 85?
Let's split the number 85 into tens and ones.
85 is 8 tens and 5 ones.
80 plus 5.
Add 2 ones to 5 ones.
We get 7 ones.
80 plus 7 equals 87.
Let's do the task together.
Let's calculate the expression and choose the correct number.
Look at the screen.
We need to calculate 64 plus 3.
Let's split the number 64 into tens and ones.
The number 64 is 6 tens and 4 ones.
Add 3 ones to 4 ones.
We get 7 ones.
Add 7 to 60.
We get 67.
So, 60 plus 7 equals 67.
Let's drag the correct number into the empty cell.
Do the next tasks by yourself.
15
Calculate. Choose the correct numbers.
16
Match the numbers they make.
17
How do you subtract 4 from 97?
Let's split the number 97 into tens and ones.
97 is 9 tens and 7 ones.
90 plus 7.
Take away 4 ones from 7 ones.
We get 3.
90 plus 3 equals 93.
Let's do the task together.
Let's calculate the expression and choose the correct number.
Look at the screen.
We need to calculate 78 minus 5.
Let's split the number 78 into tens and ones.
The number 78 is 7 tens and 8 ones.
Take away 5 ones from 8 ones.
We get 3 ones.
Add 3 to 70.
We get 73.
So, 78 minus 5 equals 73.
Let's drag the correct number into the empty cell.
Do the next tasks by yourself.
18
Calculate. Choose the correct numbers.