Mathematical thinking clearance
Grade 4 Lecture 7 Integer Calculation and Synthesis
Students, you should now be proficient in the various operation laws of the four mixed operations: commutative law, associative law, distributive law, remove (add) bracket rule, etc., when the four mixed operations, you should first calculate multiplication and division, then add and subtract, and the same level operation is calculated in the order from left to right, and when there are parentheses, the brackets are calculated firstWhen sibling operations, you can move with symbols and change the order of operations.
Quick calculation method: rounding method, factor extraction method.
Grade 4 Lecture 7 Synthesis of Integer Calculations (1).Mathematical thinking clearance
Grade 4 Lecture 7 Integer Calculation and Synthesis
Grade 4 Lecture 7 Synthesis of Integer Calculations (2).
Mathematical thinking clearance
Grade 4 Lecture 7 Integer Calculation and Synthesis
3. Choose an odd number and an even number from 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and multiply the two numbers together to get a product
Grade 4 Lecture 7 Integer Calculation and Synthesis (3) Related Reading:
Grade 4 Lecture 6 Repulsion Principle 2 - Three-Quantity Overlapping Problem.
Grade 4 Lecture 5 Principle of Repulsion 1 - Overlapping Problem of Two Quantities.