Boom vs. Buzz
Buzz says 11 because he counted on from 6.
Boom says 12 because he knows his doubles facts.
Boom because 6+6=12
There are 7 orange flowers in the garden. 6 more flowers bloom. How many flowers are there altogether?
Addition or Subtraction?
Addition- all together
2+2=
4
1+__=10
9
4+3=
7
The chicken laid 5 eggs in the morning. Later that day, it laid 4 more eggs. How many eggs did they lay all together?
9 eggs.
There are 2 pumpkins on the table and 6 pumpkins on the floor. How many pumpkins in all?
Addition or subtraction.
Addition- in all
4+4=
8
8+__=10
2
11+6=
17
Andrew has 9 slices of pizza. He gives Owen 3. How many slices does Andrew have left?
Boom says 3 because he knows his doubles facts.
Buzz says 6 because he counted on to 9 from 3.
Buzz is correct- count onto 9 from 3.
There were 10 dogs running in the field. Eight of them went back to the house. How many dogs were still running in the field?
Addition or subtraction?
Subtraction
7+7
14
5+__=10
5
9-4=__
5
There are 7 balloons. Some pop. Now there are 3 balloons. How many balloons popped?
Boom says 10 balloons popped. Buzz says 4 balloons popped. Circle who is correct. Boom Buzz
Buzz is correct because 7-3=4
There was 11 pieces of candy in the bowl. Charlie ate 4 pieces of candy. How much candy was left over?
Addition or subtraction?
Subtraction- left over
8+8=
16
3+__=10
7
14-6=___
8
There are 16 balloons. Some pop. Now there are 8 balloons. How many balloons popped?
Boom says 8 balloons popped. Buzz says 4 balloons popped.
8+8=16
16-8=8
Boom is correct.
Twelve friends were playing in the park. Eight friends go home. How many friends are left playing at the park?
Addition or subtraction.
Subtraction- how many left?
9+9=
18
__+___+___=10
3+3+4=10
8+1+1=10
9+1+0=10
5+3+2=10
2+2+6=10
20-11=___
9