Addition and Subtraction
1. Addition: Addition is putting two numbers together to form a new
number.
1.1. Parts of addition.
𝟑 + 𝟒= 𝟕
𝟑 𝒂𝒏𝒅 𝟒
are the addends.
+
Plus sign
=
Equals sign
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Sum
1.2. Examples.
a. 𝟐 + 𝟑 = 𝟓 (two plus three equals five)
b. Sarah has 2 apples. She buys 5 more. How many apples does
she have now?
𝟐 + 𝟓 = 𝟕 (4 plus 3 equals 7)
2. Subtraction: Subtraction is when you take one number away from
another to get a smaller number.
2.1. Parts of Subtraction.
𝟏𝟎 − 𝟑 = 𝟕
𝟏𝟎 𝒂𝒏𝒅 𝟑
2.2.
Minuend and Subtrahend
−
Minus sign
=
Equals sign
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Difference
Examples.
a. 𝟖 − 𝟐 = 𝟔 (eight minus two equals six)
b. There were 12 candies in the jar. Maria ate 3 of them.
How many candies are left?
𝟏𝟐 − 𝟑 = 𝟗 (12 minus 3 equals 9)
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