ABC Simplicity

This vertical number line is used to help students visualize how to "Bridge to 10" or "Make a 10" when subtracting two 1 digit numbers. The focus is finding the "difference" between 2 numbers as opposed to the idea of "taking away". I printed this on colored paper and laminated them for my students to use with dry erase markers. Example: 13 - 8 = ________ *Start at the smaller number (8) on the vertical number line. How many does it take to "Make a 10"? (Answer: 2). Write the number "2".

This activity is beneficial for students as they are able to manipulate objects and visually see how to solve a doubles plus 1 or doubles plus 2 basic addition problem. You will need small manipulatives (I use centimeter cubes) to place in each circle. This is to be used with the Doubles Plus 1-2 Practice Activity Worksheet. Example: 8 + 9 = ____________ *Students will place 8 cubes in the first big circle and the same amount of cubes (because the circles are the same BIG size) in the second

This activity worksheet is to be used in conjunction with the Doubles Plus 1-2 Circles (on my product list). Students will use manipulatives (and the Circles Activity) to find the "new" math problem to answer each question. Example: 8 + 9 = 8 + 8 + 1 = 17 Prior Knowledge: Students must be able to recall the sums of basic addition "doubles" problems.

Use this BINGO board with the corresponding "Doubles Spinner". Students will practice solving addition problems based on "doubles".

Use this spinner with the BINGO-Doubles game. Students will solve basic addition problems using mental math strategies.