Subtraction word problems - up to three digits

Learning Objectives Identify subtraction 'clue words' in a story. Set up a vertical subtraction problem from a word problem. Subtract three-digit numbers without regrouping. Subtract three-digit numbers with regrouping (borrowing). Solve one-step subtraction word problems. Write the final answer with a label (e.g., '45 toys'). You have 150 shiny marbles 🔵. If you give 25 to a friend, how many are left for you? Today, we will become math detectives! 🕵️ We will learn to find clues in stories. These clues help us solve subtraction problems with big numbers. Real-World Applications Finding out how much money you have left after buying a toy. Sharing your candy with friends and seeing how many you have now. Figuring out how many pages are left to rea...

TermDefinitionExample SubtractionSubtraction is taking one number away from another. It finds the difference. ➖If you have 5 apples 🍎 and eat 2, you have 3 left. (5 - 2 = 3) DifferenceThe difference is the answer you get in a subtraction problem.In 10 - 4 = 6, the number 6 is the difference. Clue WordsThese are special words in a story that tell us to subtract.Words like 'left', 'take away', 'how many more', or 'minus' are clue words. Regrouping (Borrowing)When the top digit is smaller, we borrow from the next column to the left. borrowing a ten to make more ones. 🎁To solve 42 - 17, we can't do 2 - 7. We borrow 1 ten from the 4, making it 12 ones. Place ValueThe value of a digit based on its position (ones, tens, hundreds).In the number 385...

Subtraction Setup Start \; Number - Number \; Taken \; Away = Number \; Left Always put the bigger number on top when you write the problem. Subtraction Steps 1. \; Subtract \; the \; Ones \; \rightarrow \; 2. \; Subtract \; the \; Tens \; \rightarrow \; 3. \; Subtract \; the \; Hundreds Always start subtracting from the ones place on the right. Regrouping Rule If \; top \; digit < bottom \; digit, \; borrow \; from \; the \; left! When the number on top is smaller, you must regroup from the neighbor to the left.