Video Transcript
Write The subtraction equation. Is it six subtract one equals
three, six subtract three equals three, six subtract three equals two, or six
subtract four equals three?
In this question, we have to find
the subtraction equation which matches the number line. Let’s look more closely at what’s
happening on the number line. We started counting at number
six. So, we know the starting number or
the first number in our subtraction equation should be number six. But that doesn’t help us much
because all of these subtraction equations start with the number six.
How many times did we count back on
this number line from number six? There are three arrows, which must
mean that we have to subtract three. One, two, three. If we count back three, that’s the
same as subtracting three. Either of these two equations could
be correct because both of these are subtracting three. Is six subtract three three? Or is six subtract three two?
Let’s start at six and count back
three. Six, five, four, three. We finished counting at number
three. The subtraction equation which
matches the number line is six subtract three equals three. If we start at six on the number
line and count back three, we will finish counting on number three. Six subtract three equals
three.
