Subtraction Chart B

Age
3-6

Materials

 * 1) Subtraction Chart B (not filled in).
 * 2) Subtraction Chart A.
 * 3) Slips on which are written all the subtraction combinations 1 - 18.
 * 4) Small cards to fill in the blank chart (answer tiles).
 * 5) Or blank duplicated for the child to fill in.

Presentation

 * 1) Directress takes a slip, for e.g. 5-3.
 * 2) Find the number 5 on the top of the board and -3 at the right side of the board.
 * 3) Place fingers on the two numbers and slide them along and down to the meeting point.
 * 4) Place the answer tile in that column.
 * 5) The child completes the Chart B.

Control Of Error

 * 1) There is the exact number of answer tiles to complete the Subtraction Chart B.
 * 2) Chart A acts as a control of error because the answers are stated on it.

Purpose

 * To help the child learn and remember the subtraction tables up to 18.