Subtracting
78-55=
78-55=23
123+56=
123+56=179
+123
458
______
5711
When adding you have to carry the ten to the next place value spot.
If Rio K. has 43 bear cards and Olivia has 150, how many bear cards do they have all together?
43+150=193 bear cards all together
105-44=
105-44=61
563+128=
563+128=631
Milo and Leonardo got two different answers when subtracting. Milo said that 345-127=222, but Leo disagrees and things the answer is 345-127=218. Which student is correct, explain how you know.
Leonardo is correct 345-127=218. Milo forgot to borrow from the 10s place.
If Rai reads 156 pages of his book on Wednesday and another 36 pages on Thursday, how many pages does he read all together?
156+36=192
300-147=
300-147=153
224+175=
224+175=399
Vander and Suriya both solve the problem 305-136 but they both got different answers. Look at both of their work and describe who made a mistake and what they should do instead.
Vander got the answer correct. Suriya skipped the tens place and brought the 10 she borrowed from the 100s place right over to the ones place.
If there are 231 students in the lower grades at Ocean Charter school and 172 students in middle school at Ocean Charter, how many students attend Ocean Charter all together?
231+172=403 students all together at Ocean Charter School