Adding Three-Digit Numbers
234+125 =
234+125=359
586-243=343
586-243=343
Estimate 243+156
400
Maya collected 245 stickers. Her friend gave her 132 more. How many stickers does Maya have now?
377 Stickers
Find the missing number: 326 + ___ =581
255
367+248=
367+248=615
704-268=
704-268=436
Estimate 687-241
500
A library had 723 books on its shelves. Students checked out 286 books. How many books remained?
437 Books
Find the missing number: ___ -247=386
633
456+379=
456+379=835
932-475=
932-475=457
Estimate 352+449
800
A school collected 358 cans in September and 427 cans in October. How many cans did the school collect altogether?
785 Cans
Which sum is greater, 458+237 or 529+181?
529 + 181
628+195+147=
628+195+147=970
800-367=
800-367= 433
Estimate 918-376
500
A farmer packed 846 apples. He sold 279 apples in the morning and 186 apples in the afternoon. How many apples were left?
381 Apples
A student estimated 674+238 by rounding to the nearest hundred. What estimate did the student find?
900
739+486+275=
739+486+275=1,500
965-478=
965-478= 487
Estimate 478+263-194
600
A museum had 935 visitors on Saturday and 678 visitors on Sunday. About how many visitors came over the weekend? Round each number to the nearest hundred.
1,600
Use the digits 2, 4, 6, 7, 8, and 9 only once to create two three-digit numbers. Find the greatest possible sum.
974 + 862 = 1,836
964 + 872 = 1,836
972 + 864 = 1,836