Josiah subtracts 337 from 600 and writes the following:
600 minus 300 is 300. Then I can subtract 40 more and get 260. But I should have only subtracted 37 more, so I'll add 3 back to my difference to get 263.
Which mental math strategy did Josiah use?
A.
Associative Property
3 answers
breaking apart
Josiah subtracts 337 from 600 and writes the following:
600 minus 300 is 300. Then I can subtract 40 more and get 260. But I should have only subtracted 37 more, so I'll add 3 back to my difference to get 263.
Which mental math strategy did Josiah use?
A.
Associative Property
B.
Breaking Apart
C.
Compensation
D.
Counting On
5 / 6
2 of 6 Answered
600 minus 300 is 300. Then I can subtract 40 more and get 260. But I should have only subtracted 37 more, so I'll add 3 back to my difference to get 263.
Which mental math strategy did Josiah use?
A.
Associative Property
B.
Breaking Apart
C.
Compensation
D.
Counting On
5 / 6
2 of 6 Answered
A.
Associative Property
Associative Property