Mathematics. All chains of examples for oral and written work. Grade 3

The book contains chains of examples on the topic "account within 1000".
All tasks are divided into topics: "Warm -up. The account within 50 and 100 "," Addition and subtraction with brackets and without brackets within 100 "," Multiplication and division by a number of 0 to 9 without brackets and with brackets within 100 "," The account is within 500. Addition, addition, Subtraction, multiplication and division into numbers from 0 to 9 without brackets and with brackets of "round numbers" "," account within 500. Addition, subtraction, multiplication and division by a number from 0 to 9 without brackets and brackets "," account within 1000. Addition, subtraction, multiplication and division by a number from 0 to 9 without brackets and with brackets of "round numbers" "," account within 1000. Addition and subtraction without brackets and with brackets "," account within 1000. Multiplication and division without brackets and with brackets. " For each topic, the tasks are grouped according to two of the same options. Inside each option, examples of different levels of complexity are collected. This will allow the student to work out stable fast account skills. Teachers can use options for testing in lessons or optional classes. To complicate the assignment, when performing each option, you can take less time for calculations.
In each topic, it is necessary to perform actions taking into account the rules of the calculation procedure