NP Worksheets Help

Triangles

With „Triangles“ you can practice addition [ + ] and multiplication [ x ] problems in the range from 0 to 900. When using more difficult modes you can also practice subtraction [ – ] and division [ : ].

The bottom-left field tells you, which operation you should use to complete the task. To complete the task, you have to enter the missing numbers into the empty fields. You can calculate the missing numbers with the help of the other numbers in the fields (see images below).

Triangles_1

Triangles_2

Addition

1 + 4 = 5
4 + 11 = 15
11 + 1 = 12

Triangles_3

Triangles_4

Multiplication

6 * 2 = 12
2 * 4 = 8
4 * 6 = 24



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