1. Irwin’s work is shown below.
Explain Irwin’s strategy and why it works.
1. Irwin’s work is shown below.
Explain Irwin’s strategy and why it works.
1. Find the difference.
Explain how to find the sum of 356 and 237. What is the sum?
1. Frank raked 356 leaves on Saturday. He raked 100 more leaves on Sunday than on Saturday. How many leaves did Frank rake on Sunday?
Todd ate 100 fewer pieces of candy than his sister. His sister ate 113 pieces of candy. How many pieces of candy did Todd eat?
1. What is ten more than 892?
1. Irwin’s work is shown below.
Explain Irwin’s strategy and why it works.
Find the missing addend.
Which two expressions can help you find the sum of: 82 + 26 + 34
Mia has 3 more markers than Esther. Mia has 15 markers. How many markers does Esther have?
1. Which three expressions can help you find the sum of
9 + 8?