Add and Subtract Fluently

What is the difference between 640,294 and 52,745?

• 587,539

• 587,549

• 587,541

• 587,531

• 4

• 5

• 3

• 6

• 0

• 9

• 1

• 8

The _____________ is the answer to an addition problem.

• difference

• sum

• addend

• product

The _____________ is the answer to a subtraction problem.

• addend

• product

• sum

• difference

• Forgot to regroup in the ten thousands place; correct sum = 872,879

• Forgot to regroup in the thousands place; correct sum = 873,879

• Forgot to regroup in the hundreds place; correct sum = 862,979

• Forgot to regroup in the tens place; correct sum = 862,889

• Leon did not need to regroup in the tens place and ones place; correct difference = 123

• Leon did not need to regroup in the tens place and ones place; correct difference = 227

• Leon did not need to regroup in the hundreds place and tens place; correct difference = 217

• Leon did not need to regroup in the hundreds place and tens place; correct difference 213

75 - 16 =

• 59

• 91

• 89

• 69

17 - 8 =

• 8

• 10

• 9

• 24

27 + 43 =

• 70

• 67

• 23

• 32