Add two-digit numbers
35 + 23 =
58
324 + 987 =
1,311
Molly had 23,908 marbles. Jack gave her 357 more. How many marbles does Molly have now?
24,265
Round to the nearest ten
23,456
23,460
35,678 + 100 =
35,778
34 + 89 =
123
897 + 234
1,131
Jack had 37 books, but he gave away 3 to his friend. His sister gave him 5 more books. How many books does Jack have?
39
Round to the nearest hundred
23,569
23,600
23,708 + 320 =
24,028
25 + 96 =
121
586 + 369 =
955
508,900 + 23 tens =
509,130
Round to the nearest thousand
23,453
23,000
30,125 + 4,509
34,634
27 + 89 =
116
297 + 446 =
743
305 tens + 23 hundreds =
5350
Round to the nearest ten thousand
23,459
23,000
123,709 + 23,000 =
146,709
94 + 31 =
125
907 + 238 =
1,145
357,345 + 23_,358 = 590,703
3
357,345 + 233,358 = 590,703
This number is rounded to the nearest
Original number = 23,456
New number = 23,500
nearest hundred
367,907 + 125,907 =
493,814