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 ...

his lesson introduces Grade 1 students to adding two-digit numbers without carrying. Students learn to identify the tens and ones and add each place separately. For example, 42 + 31 = 73: Ones: 2 + 1 ...