To complete an addition pattern using 3, you can rearrange the addition statements by using subtraction. For example, if the pattern is 3, 6, 9, you can see that each number increases by 3. To find the previous number in the sequence, you can subtract 3 from the current number: 9 - 3 = 6 and 6 - 3 = 3. This shows that subtraction can help identify the consistent step in an addition pattern.
By using division, multiplication, addition or subtraction
123-45-67+89??
A subtraction problem can always be written as an addition problem by using the concept of "adding the opposite." For example, the subtraction equation (a - b) can be transformed into the addition equation (a + (-b)). This representation helps to maintain the same numerical relationship while expressing it in a different mathematical form.
3 + 4 * 5 = 23 Remember that multiplication must be carried out before addition.
60
Addition and subtraction are inverse operations. So you can solve addition by subtracting.
By using division, multiplication, addition or subtraction
3-3=0
505
110 divided by 2
Problems involving the addition and subtraction of unlike fractions.
123-45-67+89??
33*3=99 3*33=99
impossible
Addition and subtraction.
Y/3 - 1/9 = 2/9
(2 + 2)*2/2 = 4