Math Review (Estimation, Addition, and Subtraction)

1. Rounding to the Nearest Ten Match each number on the left to the tens it rounds to on the right. 53 50 37 40 72 70 55 60 123 120 2. Rounding to the Nearest Hundred Match each number on the left to the hundreds it rounds to on the right. 516 500 678 700 201 200 1,458 1,500 989 1,000 3. Fill in the blank with the correct math vocabulary. Click on the line for word choices. Using estimation means to round.Sum is the answer you get by adding numbers.Difference is the answer you get by subtracting numbers. 4. Marvin's family went to the movies. They spent $37 on tickets and $14 on snacks. About how much did they spend in all? $20 $30 $40 $50 5. Terry has 234 Skittles in his bag. His friend gave him 276 more. How many total Skittles does Terry have? 510 41010 4011 500 6. Find the estimated sum. Round each number to the nearest ten789 + 124 7. Add each problem to find the sum 8. Subtract to find the difference