Plus or Minus is a game to help children master the arithmetic skills of addition and subtraction. Numbers are arranged in a 5 x 5 grid. The columns add up to the answers at the bottom, and the rows add up to the answers on the right. The bottom row, the right-hand column, and the diagonal all add up to the answer in the bottom right-hand corner, which is left blank. Children must place a plus or a minus sign in front of each number to make everything adds up correctly.
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Vendeur : Revaluation Books, Exeter, Royaume-Uni
Paperback. Etat : Brand New. 122 pages. 8.00x5.25x0.31 inches. In Stock. N° de réf. du vendeur zk1989454062
Quantité disponible : 1 disponible(s)