2 Digit Addition
63+33=
96
456+231=
687
49-47=
2
588-283=
305
A rock shop has 1,378 natural rocks and 1,242 polished rocks. How many rocks are there in all?
2,620 rocks
17+42=
59
147+821=
968
98-54=
44
699-556=
143
Bryce Canyon covers 35,835 acres. Canyonlands covers 337,598 acres. How many acres do the two parks cover in all?
373,433 acres
23+65=
88
506+878=
1384
90-22=
68
964-270=
694
The distance from San Diego to Beijing, China is about 10,257 kilometers. The distance from San Diego to Buenos Aires, Argentina is about 9,678 kilometers. How much farther is it to Beijing?
579 kilometers
89+57=
146
932+393=
1325
81-18=
63
733-692=
41
The diameter of Earth is 12,756 kilometers. The diameter of Mars is 6,794 kilometers. How many more kilometers is the diameter of Earth than Mars?
5,962 kilometers
97+54=
151
775+795=
1570
64-15=
49
800-261=
539
Arrow Park had 190,618 visitors last year. It had 144,970 visitors this year. How many more visitors did the park have last year than this year?