Reading Is Fun

Category: NYS SED Math Standards

Grade: Second Grade

Objective: Addition of double digits numbers with regrouping.

Benchmark:

2.RP.5 Justify general claims, using manipulatives.

2.N.6 Develop an understanding of the base ten

system.

2.N.16 Use a variety of strategies to solve addition

and subtraction problems using one- and

two-digit numbers with and without

regrouping

Materials:

Place Value Mat

Pencils

+24

Complete following 4 steps to solve the problem.

Step #1 - First number 48 (4- tens and 8- ones)

Step #2 – Second number 24 (2 – tens and 4- ones)

Step #3 - Turn your ones (dots) from the right into tens if possible (Here we can turn 10 ones (dots) from the right into one ten on the left).

Step #4 – Find your answer (count up your tens and ones).

Answer – 72

View the lesson with graphics Place Value Mat Lesson Plan