Addition
393 + 225
618
40 -10
30
Round 336 to the nearest hundred
300
Miss Kirk drove 164 miles in the morning and 219 miles in the afternoon. How many miles did she drive that day?
383
57+ 13
70
98 -49
49
Round 486 to the nearest ten
490
Greg counted 83 cars and 38 trucks in the mall parking lot. Estimate the total number of cars and trucks Greg counted.
120
Estimate the sum
171+ 727
900
287 -162
125
Round 570 to the nearest hundred
600
Ruby has 78 books. 31 of the books are on the shelves. The rest are still packed in boxes. How many of Ruby's books are still in boxes?
47
256+ 321
577
56-38
18
Round 159 to the nearest ten
160
Ben has a collection of 812 stamps. He gives his brother 345 stamps. About many stamps does Ben have left?
500
Estimate the sum
302 +412
700
435-121
314
Round 710 to the nearest hundred
700
There were 475 children at the baseball game on Sunday. What is 475 rounded to the nearest ten?
480