Video Transcript
Here are seven counters. Hannah crossed out some counters
and coloured what was left. Seven subtract three equals
four. Her picture shows that seven minus
three is four. Pick the number sentence that shows
seven minus two is five. Seven minus five equals two, or
seven minus two equals five. Pick the picture that matches the
number sentence. Seven take away five equals
two. Pick the number sentence that
matches the picture. Seven take away seven equals seven,
or seven take away seven equals zero.
The first picture shows us seven
minus two is five. We know that there are seven
counters. And the word “minus” means that it
is a subtraction. And we need to take away or minus
two. Seven minus two equals five. This is the number sentence which
shows us seven minus two is five.
The second part of the question
asks us to find the picture that matches the number sentence seven take away five
equals two. We know that both models show seven
counters. And we have to subtract five. Which model shows this? The first model shows four counters
being subtracted. And the second model shows five
counters being subtracted. And there are two left. This is the picture which matches
the number sentence seven subtract five equals two.
Finally, we need to pick the number
sentence that matches the picture. We know there are seven
counters. We have to take away all seven. And there are no counters left. The second number sentence must be
correct because this shows no counters left. The number sentence that matches
the picture is seven subtract seven equals zero. We used counters to help us model
subtraction sentences.
