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Number Bonds
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Number bonds to 5
Missing first addend to 5
\[ \square + 3 = 5 \]
Find the missing number at the start of an addition that makes 5.
Missing second addend to 5
\[ 3 + \square = 5 \]
Find the missing number in the middle of an addition that makes 5.
Find the sum to 5
\[ 3 + 2 = \square \]
Add two numbers that make 5 and find the total.
Number bonds to 10
Missing first addend to 10
\[ \square + 7 = 10 \]
Find the missing number at the start of an addition that makes 10.
Missing second addend to 10
\[ 4 + \square = 10 \]
Find the missing number in the middle of an addition that makes 10.
Find the sum to 10
\[ 4 + 6 = \square \]
Add two numbers that make 10 and find the total.
Number bonds to 20
Missing first addend to 20
\[ \square + 13 = 20 \]
Find the missing number at the start of an addition that makes 20.
Missing second addend to 20
\[ 8 + \square = 20 \]
Find the missing number in the middle of an addition that makes 20.
Find the sum to 20
\[ 8 + 12 = \square \]
Add two numbers that make 20 and find the total.
Number bonds to 50
Missing first addend to 50
\[ \square + 35 = 50 \]
Find the missing number at the start of an addition that makes 50.
Missing second addend to 50
\[ 20 + \square = 50 \]
Find the missing number in the middle of an addition that makes 50.
Find the sum to 50
\[ 20 + 30 = \square \]
Add two numbers that make 50 and find the total.
Number bonds to 100
Missing first addend (multiples of 10)
\[ \square + 60 = 100 \]
Find the missing multiple of 10 at the start of an addition.
Missing second addend (multiples of 10)
\[ 40 + \square = 100 \]
Find the missing multiple of 10 in the middle of an addition.
Find the sum (multiples of 10)
\[ 40 + 60 = \square \]
Add two multiples of 10 that make 100.
Missing first addend (non-multiples)
\[ \square + 63 = 100 \]
Find the missing number at the start of an addition that makes 100.
Missing second addend (non-multiples)
\[ 37 + \square = 100 \]
Find the missing number in the middle of an addition that makes 100.
Find the sum (non-multiples)
\[ 37 + 63 = \square \]
Add two numbers that make 100 and find the total.
Number bonds to 1000
Missing first addend (multiples of 100)
\[ \square + 600 = 1000 \]
Find the missing multiple of 100 at the start.
Missing second addend (multiples of 100)
\[ 400 + \square = 1000 \]
Find the missing multiple of 100 in the middle.
Find the sum (multiples of 100)
\[ 400 + 600 = \square \]
Add two multiples of 100 that make 1000.
Missing first addend (multiples of 10)
\[ \square + 650 = 1000 \]
Find the missing multiple of 10 at the start.
Missing second addend (multiples of 10)
\[ 350 + \square = 1000 \]
Find the missing multiple of 10 in the middle.
Find the sum (multiples of 10)
\[ 350 + 650 = \square \]
Add two multiples of 10 that make 1000.
Missing first addend (non-multiples)
\[ \square + 637 = 1000 \]
Find the missing number at the start.
Missing second addend (non-multiples)
\[ 363 + \square = 1000 \]
Find the missing number in the middle.
Find the sum (non-multiples)
\[ 363 + 637 = \square \]
Add two numbers that make 1000.
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