10
Whole Number Operations VIIUnderstand Division
Pablo packs 10 apples into baskets.
He puts 2 apples in each basket.
How many baskets does he pack?To find how many baskets,
separate 10 into equal groups of 2.
Use repeated subtraction.Yo u subtracted 5 times.
Pablo packs 5 baskets.Yo u can also write a division sentence to show how to
separate 10 into equal groups of 2.
Write: 10 2 5Read as:“Ten divided by two equals five.”Find how many groups.- 16 in all 2. 9 in all 3. 20 in all
8 in each group 3 in each group 5 in each group - 14 in all 5. 18 in all 6. 15 in all
2 in each group 9 in each group 5 in each group - 36 in all 8. 12 in all 9. 10 in all
4 in each group 3 in each group 2 in each group
number
in allnumber in
each groupnumber of
groupsdivision sentenceThink
How many groups
of 2 are in 10?
Count back by 2s
until you reach 0.
8, 6, 4, 2, 00 1 2 3 4–2 –2 –2 –2 –25 6 7 8 9 108204-6_1-27 1/10/06 7:59 AM Page 10