Page 34 - PlayFacto_B4
P. 34
4 Select one number card and subtract it from the previous number. Start
subtracting from the last result in step 3 . Repeat selecting the cards
and subtracting numbers until you have a result of 9 or less. Record the
numbers on the selected cards and the differences in order.
(last number)
① ②③ ④ ⑤ ⑥ ⑦
5 Repeat steps 3 and 4 to add numbers until you have a result of 27 or greater.
Then, change the rule to subtract the numbers until you have a result of 9 or
less.
Example greater than
27
9
3 12 20 24 29 21 14 9 10 15
3+9 12+8 20+4 24+5 29-8 21-7 14-5 9+1 10+5
3. 9 Up, 27 Down 31
subtracting from the last result in step 3 . Repeat selecting the cards
and subtracting numbers until you have a result of 9 or less. Record the
numbers on the selected cards and the differences in order.
(last number)
① ②③ ④ ⑤ ⑥ ⑦
5 Repeat steps 3 and 4 to add numbers until you have a result of 27 or greater.
Then, change the rule to subtract the numbers until you have a result of 9 or
less.
Example greater than
27
9
3 12 20 24 29 21 14 9 10 15
3+9 12+8 20+4 24+5 29-8 21-7 14-5 9+1 10+5
3. 9 Up, 27 Down 31
