52 + 39 =
91
57 - 21 =
36
Mr. Danielson read 98 books in July and 128 books in August. How many books did he read in July and August?
226 books
Sum
To add
Round 56 to the nearest ten
60
198 + 727 =
925
642 - 137 =
505
783 points
Total
To add
Round 281 to the nearest ten.
280
222 + 204 =
426
374 - 252 =
122
Ms. Toscano bought Coco 622 toys. Coco chewed up 189 toys. How many toys is Coco left with?
493 toys
Difference
To subtract
Complete the pattern 6, 9, 12, __, ___, ___.
15, 18, 21
519 + 124 =
643
804 - 259 =
545
983 books
Spend
Addition or subtraction
Round to the greatest place value
789 + 352 =
800 + 400 = 1,200
790 + 112 =
902
921 - 436 =
485
Mr. Danielson's class ran a contest to see which of the other 3rd grade classes could earn the most AR points. Ms. Howe's class earned 342, Ms. Blisten's class earned 422 points, and Ms. Toscano's class earned 389. How many more points did Ms. Toscano and Ms. Blisten earn than Ms. Howe?
469 points
How much more?
Subtraction
Round to the greatest place value
72 + 9
70 + 10 = 80