Draw a picture: Adding and Subtracting
Roy is reading a book that is 68 pages. He has read 24 pages so far. How many more pages does he have to read to finish the book?
44 pages
345 + 687
1,032
Estimate:
396 + 407
about 800
subtract:
4,589 - 1,728
2,861
There are 29 students in the school band. During practice, 6 new students joined the band. How many students are in the band now?
35 students
4,323 + 879 + 1,634
6,836
estimate:
579 + 219
about 800
subtract
6,723 - 4,687
2,036
Jaycee’s teacher gave her a box of 96 pens. She gave 17 of the pens to her classmates. How many pens were left in the box?
79 pens
54,786 + 5,678 + 202 + 7
60,673
estimate:
1,946 - 276
about 1,700
subtract
10,525 - 8,628
1,897
Danny has 45 minutes to take a math test. If Danny finishes half the test in 19 minutes, how many minutes does he have left to finish it?
26 minutes
Ivan had 345 Weigant Tickets. Emma had 5,672 Weigant Tickets. Aurora had 4,345 Weigant Tickets. How many did they have in all?
10,362 Weigant Tickets
estimate
829 - 292
about 500
subtract
36,578 - 23,982
12,596
While shopping, Janet bought a shirt for $8, a pair of jeans for $22, mittens for $5, and a hat for $10. How much money did Janet spend?
$45
Ms. Mills bought 45,673 agendas for the school year. Mr. Gutierrez bought 34,673 agendas for the school year. How many did they buy in all?
80,346 agendas
693 + 579
about 1,300
87,452 - 79,647
7,805