Subtract one-digit numbers from two-digit numbers

Learning Objectives Identify the tens and ones place in a two-digit number. Subtract a one-digit number from the ones place of a two-digit number. Use a number line to count back and find the difference. Solve subtraction word problems with pictures. Write a subtraction sentence correctly. Check their subtraction answer by counting. You have 14 yummy cookies 🍪. You eat 3 of them. How many are left? Today, we will learn how to take away a small number from a bigger number. This is called subtraction! It helps us know how much is left. Real-World Applications Sharing your 12 crayons 🖍️ with a friend. Eating 5 grapes 🍇 from a bunch of 18. Giving away 2 of your 15 toy cars 🚗. Spending 4 coins 🪙 when you had 16.

TermDefinitionExample Two-Digit NumberA number that has a tens part and a ones part.The number 15 has 1 ten and 5 ones. 🍓🍓🍓🍓🍓 🍓🍓🍓🍓🍓 + 🍓🍓🍓🍓🍓 One-Digit NumberA number from 0 to 9. It only has a ones part.The number 7 is a one-digit number. 🦖🦖🦖🦖🦖🦖🦖 Subtract (-)To take away or find the difference between two numbers.12 - 2 means '12 take away 2'. Tens PlaceThe spot for groups of ten in a number.In the number 18, the '1' is in the tens place. It means one group of ten. Ones PlaceThe spot for single ones in a number.In the number 18, the '8' is in the ones place. It means eight single ones.

Subtract the Ones Rule T O - O = T ? When you subtract, always start with the ones place. The tens place often stays the same. Counting Back Rule Big Number - Small Number = Count back 'Small Number' times Start at the big number and hop back on a number line. The number you land on is the answer.