Add Double Digit Numbers

In the operation 6 + 4 = 10 , 6 and 4 are called

• Sum

• Six and four

• Addends

• Addition factor

42 together with 37 is same as

• 78

• 79

• 69

• 77

When we add 2 digit number, we start the addition from ___ place

• Tens

• Hundreds

• Ones

• None of these

What is the sum of 34 and 25?

• 40

• 59

• 57

• 60

Use mental math to solve.

120 + 42 + 80

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What is the sum of 34 and 25?

• 40

• 59

• 57

• 60

When two numbers are added together, the result is called

• Addend

• Difference

• Ten

• Sum

In a ________ fact, the two numbers being added are the same.

• near doubles

• doubles

• sum

• addend

What do you do when the bottom digit is bigger than the top digit in the ones column?

• Add one to the top digit

• Subtract one from the bottom digit

• Regroup

• Ignore the problem

45+25

• 70

• 17

• 27

• 77