- Question 1: Find what each picture equals using these equations: Neptune plus Neptune equals 12, Neptune minus 5 plus Earth equals 9.
Two pictures stand for two hidden numbers, and the child works out both. Numbers and results here stay within twenty. Equations add and subtract, so the child reads each sign. A picture keeps one value throughout, so a value found carries onward. Pictures on this sheet: Earth and Neptune.
Neptune + Neptune = 12, Neptune - 5 + Earth = 9.
Two children can sit side by side, take a problem each, and compare how they reached the number.