Add 2-digit Numbers Using a Number Line

Where will you land on the number line? Grade 2 students practice adding 2-digit numbers by making 'jumps' for tens and ones to reach the sum. As questions adapt to their progress, children use visual models to break apart numbers and move step-by-step toward the final answer. With instant feedback on every jump, this practice builds flexible mental math strategies and a strong understanding of place value.

• Number Sense and Operations
• Addition
• Whole Numbers
• Place Value
• Add
• Addend
• Adding
• Digit
• Equations
• Sum
• 2-Digit Numbers

• AC9M2N04 — add and subtract one- and two-digit numbers, representing problems using number sentences and solve using part-part-whole reasoning and a variety of calculation strategies
• ENG-MATH-Y2-AS.2 — Solve problems with addition and subtraction by applying their increasing knowledge of mental and written methods.
• NY-2.MD.6
• 2.MD.B.6 — Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.
• 2.MD.B.6
• MA.2.NSO.2.3
• MATH.2.4.B
• G2.B2.4
• BC.MATH.G2.CONTENT.04
• AB.MATH.G2.MAT2-OI1-GQ2-LO1
• ZA.CAPS.MATH.G2.NOR.1.16
• SG.MATH.P2.NA.WN.2.1

• Break Apart Numbers to Add