Understand Subtraction - Take Whole Tens
Use a number line to demonstrate subtracting by tens. Learners "hop" backwards down a tens number line to complete subtraction equations. Several different ways to express the operation are included.
13 Views 75 Downloads CCSS: Adaptable
Numbers to 1000 on a Line or Grid
A series of engaging activities gives second-graders practice with three-digit numbers up to 1000. They examine three hundreds charts, one with numbers 101-200, another with 901-1000, and a third counting by 10 to 1000. Worksheets give...
1st - 3rd Math CCSS: Adaptable
Grade 1 Supplement Set A3 - Number & Operations: Addition & Subtraction on the Number Line
Hop your way through a mathematical equation with your first grade class as they learn the idea of moving up and down the number line. Adding and subtracting like little frogs is an engaging and clever way to teach/reinforce this concept.
K - 2nd Math CCSS: Adaptable
“Crossing the Decade” Concentration
Young mathematicians concentrate on learning to fluently count. Following the rules of the classic game Memory, children take turns flipping over cards in order to find pairs of numbers that cross a decade (e.g. 29 and 30). For younger...
K - 2nd Math CCSS: Designed