Page 34 - PlayFacto_B7
P. 34
Making the least difference
Select four number chips and make a number sentence (2-digit) – (2-digit)
with the least difference.
Materials: Create Expression activity board,
1 Number chip set (1-9), Operation chip (-)
1 Prepare one 「Create Expressions」 activity board, one number chip set
from 1 to 9, and one operation chip (-).
2 Shuffle all the number chips face down.
3 Select four number chips and make a number sentence with the least
difference on the activity board.
Try to place the
closest numbers in the
tens places to have the
least difference.
4
313. The greatest difference · The least difference
Select four number chips and make a number sentence (2-digit) – (2-digit)
with the least difference.
Materials: Create Expression activity board,
1 Number chip set (1-9), Operation chip (-)
1 Prepare one 「Create Expressions」 activity board, one number chip set
from 1 to 9, and one operation chip (-).
2 Shuffle all the number chips face down.
3 Select four number chips and make a number sentence with the least
difference on the activity board.
Try to place the
closest numbers in the
tens places to have the
least difference.
4
313. The greatest difference · The least difference