Worksheet: Word Problems: Adding Numbers up to 20

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In this worksheet, we will practice solving addition problems with numbers up to 20 by finding either the missing part or the whole and will practice solving additive comparison problems.

Q1:

William built a tower with 8 blocks. He then added 5 more blocks. How many blocks are in the tower now?

Q2:

6 children were playing in a playground. They were joined by another group of children. After that, there were 10 children in the playground. How many children were in the group that joined?

Q3:

Hannah built a tower with 14 blocks, but 6 blocks fell off. How many blocks are still in the tower?

Q4:

Waiters were serving food to a table. After 6 plates had been served, there were 9 people who still needed food. How many people were at the table?

Q5:

A group of girls were dancing. 4 boys joined in and then there were 8 people dancing in total. How many girls were there?

Q6:

A group of fairies were flying around a flower. After 4 more fairies joined the group, there were 14 fairies in total.

How many fairies were there at the start?

Q7:

Michael is 2 years old. Benjamin is 1 year older than Michael. Madison is 5 years older than Benjamin. How old is Madison?

Q8:

Olivia has 4 brothers and 2 sisters. How many brothers does her brother William have? How many sisters does William have?

A4 brothers, 2 sisters
B4 brothers, 3 sisters
C3 brothers, 3 sisters
D3 brothers, 2 sisters

Q9:

There are 10 children playing a game in the garden and seven more children in the garden. How many children are there?

Q10:

There are 6 brown cows in a field. They are joined by 5 white cows. Which expression shows how many cows are in the field now?

Q11:

Find the missing number to make the equation correct.

Q12:

There should be the same number of blocks on each side of the equal sign. How many blocks should be in the empty square?

Q13:

Daisy planted 7 roses and 5 sunflowers in her garden. Choose the addition sentence that shows this using “?” for the total number of flowers.

A7 + 12 = ?
B7 + 5 = ?
C5 + ? = 7
D7 + ? = 12
E12 + 5 = ?

Q14:

Here are some counters with numbers:

Choose the two numbers that make the equation true.

A7, 14
B9, 14
C7, 15
D9, 15
E6, 14