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In this lesson, we will learn how to determine whether the + or - sign makes each number sentence true, including numbers up to 3 digits.

Q1:

Use + or − to make the following arithmetic operation correct:

Q2:

Q3:

Q4:

Q5:

Q6:

Q7:

Fill in the blank to find the missing symbol: 1 2 2 = 1 4 .

Q8:

Which symbol is missing from the equation 1 1 + 5 1 6 ?

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