Math Review (Estimation, Addition, and Subtraction)

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 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 Rounding to the Nearest Thousand Match each number on the left to the thousands it rounds to on the right. 1,523 2,000 18,925 19,000 943 1,000 6,459 6,000 7,208 7,000 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. Jenny has 86 pink flowers. Her friend Harper has 924 pink flowers. About how many more flowers does Harper have than Jenny? 838 1,010 810 990 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 Terry has 234 Skittles in his bag. His friend gave him 276 more. How many total Skittles does Terry have? 510 41010 4011 500 Addition or Subtration? Sort the words by clicking on them. Sort the key words by operation. Addition both combined altogether sum join more total Subtraction fewer how much more how many more how many are left minus difference less take away