Grade 2. Mathematics. I am learning to count quickly. Late T.S.

manual "Mathematics. I am learning to count quickly. "It will help your second grader to learn to count quickly and correctly.

The book presents all types of tasks for addition and subtraction in the range of 20 and 100:

- Addition and subtraction of round two-digit and deductible and subtracting unambiguous numbers.

- subtracting unambiguous from two-digit numbers.

- subtraction without transition through a dozen.

- addition and subtraction within 100 columns.

- an oral account.

so that the solution of examples does not seem monotonous and boring work, the manual has many entertaining games, crosswords, labyrinths.