Subtraction
800-308=
492
The concert hall sold 28 fewer tickets for the Sunday concert than for the Friday concert. They sold 251 tickets on Friday. About how many tickets were sold for the Sunday concert?
223
40
554+358
912
What is it called when I take a number from another place value so I can subtract?
Borrowing/ regrouping
606-436
170
There were 506 tickets sold on Wednesday and 251 tickets sold on Friday. About how many more tickets were sold on Wednesday than Friday?
255
When rounding to the nearest ten, what digit should you underline?
422+226
648
547-254
293
900-696
204
A Brachiosaurus is 81 feet long and a Tyrannosaurus rex is 39 feet long. About how much feet longer was the Brachiosaurus than the Tyrannosaurus?
42
Round 473 to the nearest ten.
470
691+293
984
805-454
351
905-486
419
There are 365 days in a year on Earth and 88 days in a year on Mercury. What is the difference in days in a year on Earth and Mercury?
277
Round 268 to the nearest hundred.
300+143
443
Is it true?
874-684=190
True