Standard Algorithm Addition
Add by using the standard algorithm:
5,215
+1,367
6,582
Subtract by using the standard algorithm.
8,974
-5,258
3,716
Add by using the standard algorithm:
8,215
+2,392
10,607
Subtract by using the standard algorithm.
7,984
-5,258
2,726
A school had a competition to see which grade could read the most books. The fourth grade read 1,714 books. The fifth graders read 506 more books than the fourth graders.
About how many books did the fourth grade and fifth grade read all together? Estimate by rounding to the nearest hundreds place before adding.
1,700+500=2,200
2,200+1,700=3,900 books.
Add by using the standard algorithm
13,268
+ 3,573
16,841
Subtract by using the standard algorithm.
77,904
-15,892
62,012
Add by using the standard algorithm:
14,095
+ 5,790
19,885
Subtract by using the standard algorithm.
67,914
- 17,832
50,082
A library hosted a reading contest to see which class could read the most books. The third graders read 1,230 books. The fourth graders read 378 more books than the third graders.
About how many books did the third and fourth graders read all together? Estimate by rounding each number to the nearest hundreds place before adding.
1,200+1,600=2,800 books
74,095
+ 4,790
78,885
Subtract by using the standard algorithm.
256,437
-125,898
130,539
Add by using the standard algorithm:
426+264+642
1,332
Subtract by using the standard algorithm.
226,437
-105,892
120,545
A school had a competition to see which grade could read the most books. The fourth grade read 1,714 books. The fifth graders read 506 more books than the fourth graders.
Exactly how many books did the fourth and fifth graders read all together?
3,934 books
Add by using the standard algorithm.
724,095
+ 4,980
729,075
Subtract by using the standard algorithm.
226,437
-105,892
120,545
Add by using the standard algorithm:
73,097
+5,047
78,144
Subtract by using the standard algorithm.
96,873
-4,904
91,969
A restaurant made $6,124 on Friday. It made 1,302 more on Saturday than on Friday. On Sunday, the restaurant made $3,456. How much did the restaurant make in the three days?
17,006
Add by using the standard algorithm.
834,095
+ 4,210
838,305
Subtract by using the standard algorithm.
517,534
-305,228
212,306
Add by using the standard algorithm:
633,912
+267,334
901,246
Subtract by using the standard algorithm.
527,544
-315,248
212,296
A bakery earned $4,850 on Monday. It earned $1,150 more on Tuesday than it did on Monday. On Wednesday, the bakery made $6,000. How much did the bakery earn in total over the three days?
16,850 in total