Page 13 - PlayFacto_P4
P. 13
Operation clock
The numbers from 1 to 9 have disappeared on a clock. Let’s complete
the clock using the sum or difference of two numbers.
Materials: 1 Number chip set (1-9), 1 Operation chip set (＋, )
1 Prepare the number chips from 1 to 9 and operation chips ( , ).
2 Select two numbers and write the addition or subtraction sentence to find
the missing numbers on the clock.
Example Selected numbers: ,
=8 =2
3 Write each number sentence on the clock.
10 Workbook P-4
The numbers from 1 to 9 have disappeared on a clock. Let’s complete
the clock using the sum or difference of two numbers.
Materials: 1 Number chip set (1-9), 1 Operation chip set (＋, )
1 Prepare the number chips from 1 to 9 and operation chips ( , ).
2 Select two numbers and write the addition or subtraction sentence to find
the missing numbers on the clock.
Example Selected numbers: ,
=8 =2
3 Write each number sentence on the clock.
10 Workbook P-4
