[For parents of children learning the abacus] How to do 2-digit addition on the abacus. 4 tips you can use at home for children who get stuck when carrying to the …

They can already do single-digit 'carrying' smoothly. However, when it comes to 2-digit problems, their fingers stop at 42 + ...
PBS

Adding 2-Digit Numbers

Join Mrs. Markavich for Numeracy Talk with Dotson. Join Mrs. Markavich for Numeracy Talk with Dotson working on conservation to 20. Get your math brain ready to have some fun with adding two-digit ...
PBS

Add Two-Digit Numbers

(happy music) (springing) (creaking) (squeaking) - [Kids] Math Mights! - Welcome first grade Math Mights. I'm Mrs. Markavich, and I'm so excited that you're here with me today. Let's take a look at ...
TES

Add and Subtract two-digit numbers

This resource includes 7 worksheets labelled A to G, each containing 5 addition and 5 subtraction questions and squares below to show working out. All questions are two-digit add two-digit or ...