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Easy: Missing part, within 10
A number bond shows how a whole splits into two parts: the whole is at the top and the parts below. When both parts are known, add them to find the whole. When the whole and one part are known, take the part away from the whole to find the other part.
Write the missing number in each number bond.
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A number bond shows a whole and the two parts that make it, such as 10 split into 7 and 3. It shows addition (7 + 3 = 10) and subtraction (10 − 7 = 3) in one picture.
Subtract the known part from the whole, or count up from the part to the whole. If the whole is 15 and one part is 9, the other part is 6.
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