Subtracting 7

Learning Objectives Subtract 7 from any number between 7 and 20. Use a number line to show subtracting 7. Accurately count back 7 from a given number. Use pictures or objects to model taking away 7. Solve simple word problems that involve subtracting 7. Write a correct subtraction sentence using the minus (-) and equals (=) signs. You have 10 shiny balloons 🎈. If 7 fly away, how many do you have left? Today, we will learn fun ways to take away the number 7! This is called subtracting. It helps us know how many things are left over. Real-World Applications Sharing 7 crayons with a friend. Eating 7 berries from your snack bowl. Seeing 7 ducks swim away in a pond. Using 7 blocks to build a small tower.

TermDefinitionExample SubtractTo take away some things from a group. It makes the number smaller.If you have 9 🍎 and you subtract 7, you take 7 apples away. Minus Sign (-)This little line tells us to subtract. It looks like this: -When you see 11 - 7, the minus sign means 'take away 7'. DifferenceThe answer you get after you subtract.In 10 - 7 = 3, the number 3 is the difference. Equals Sign (=)This sign means 'is the same as'. It shows what the answer is.12 - 7 = 5 means that 12 take away 7 is the same as 5. Count BackA way to subtract by counting backwards from the bigger number.To solve 15 - 7, you can start at 15 and count back 7 times: 14, 13, 12, 11, 10, 9, 8. Number LineA long line with numbers in order. It helps us see the numbers and count.You can use a numbe...

The Subtraction Sentence Start Number - 7 = Difference This is how we write a problem for subtracting 7. The biggest number goes first. The Counting Back Strategy Start at x, then count back 7 times: (x-1), (x-2), (x-3), (x-4), (x-5), (x-6), (x-7) Say the big number, then use your fingers to count back 7 numbers to find the answer. Break Apart 7 Strategy x - 7 is the same as x - 5 - 2 Taking away 7 is tricky. It's easier to take away 5, then take away 2 more.