Which sign makes the number sentence true?

Learning Objectives Identify if a number sentence needs a plus (+), minus (-), or equals (=) sign. Solve a number sentence to check if the chosen sign is correct. Explain why a plus sign makes a number bigger. Explain why a minus sign makes a number smaller. Understand that the equals sign means 'the same as'. Complete at least 5 mixed operation number sentences correctly. Oh no! The math signs ran away! 🏃‍♂️ Can you help us find the right one to fix our number sentences? We will be math detectives today! 🕵️‍♀️ We will learn how to choose the perfect sign (+, -, or =) to make a number sentence true. It's like solving a fun puzzle! Real-World Applications Sharing cookies with a friend 🍪 Finding out how many toys are left after some are lost 🧸 Counti...

TermDefinitionExample Number SentenceA math story that uses numbers and signs. It tells us a math fact.6 + 3 = 9 is a number sentence. It tells a story about adding. Plus Sign (+)This sign means to add or join groups together. It makes numbers bigger! ➕4 + 2 means you have 4 apples and get 2 more. Minus Sign (-)This sign means to subtract or take away. It makes numbers smaller! ➖5 - 1 means you have 5 balloons and 1 flies away. Equals Sign (=)This sign means 'the same as'. It shows that both sides are balanced. ⚖️3 + 1 = 4 means that 3 + 1 is the same amount as 4. TrueA number sentence is true when it is correct. It makes sense!2 + 2 = 4 is true. But 2 + 2 = 5 is not true.

The Plus Rule First Number + Second Number = Bigger Answer Use the plus sign (+) when the answer is bigger than the first number. The Minus Rule First Number - Second Number = Smaller Answer Use the minus sign (-) when the answer is smaller than the first number. The Equals Rule One Side = The Other Side Use the equals sign (=) when the amount on the left is the same as the amount on the right.