Media Summary: I can solve two-digit addition and subtraction problems using an inch ruler or a yardstick as a number line. I can use a number line to represent and solve addition and subtraction problems about length I can solve two-digit addition and subtraction problems using a centimeter ruler or a meter stick as a number line.
2nd Grade Into Math 20 - Detailed Analysis & Overview
I can solve two-digit addition and subtraction problems using an inch ruler or a yardstick as a number line. I can use a number line to represent and solve addition and subtraction problems about length I can solve two-digit addition and subtraction problems using a centimeter ruler or a meter stick as a number line. I can measure and then find the difference Mastering addition is the very first step toward Learn how to subtract larger numbers using base ten blocks and regrouping.
This is a multiplication trick for any two digit numbers that end