1.
(1) When calculating (2000-36× 47) ÷ 44, first use the calculate () method, and finally use the calculate () method.
(2) 180× 650-320 ÷ 80. If you want to change the operation order, you must use parentheses to calculate the subtraction first. The formula is.
(3) According to 500 ÷125 = 4,4+404 = 408,804-408 = 396, a comprehensive formula is formed.
(4) It was originally planned to be completed on 2 1 day, but it was actually completed () days in advance.
(5) Five people weave 80 baskets in four days, and each person weaves () baskets every day.
The number A is 52 times that of B. 。
① If B is 364, then A is ();
② If the number A is 364, then the number B is ().
(7) What is the difference between the quotient of 78 and 82 divided by 585 and 265? The comprehensive formula is ().
(8) Divide 182 by the quotient of 13 and multiply it by the difference between 28 and 14. What is the product? The comprehensive formula is ().
(9) The maximum daily temperatures measured by a meteorological team in a week are 365,438 0℃, 33℃, 34℃, 32℃, 30℃, 35℃ and 29℃ respectively. The average maximum temperature this week is ().
(10) adapted the formula into an application problem.
5×(3+7):___________________________
5×3+7:______________________________
2. True or false. (tick "√" for the right and "×" for the wrong, ** 10).
(1)75×8 represents the sum of eight 75s. ()
(2) The number less than 200 times 2 is 198. ()
(3) If the number of B is less than the number of A by 2, the number of A is more than the number of B by 2. ()
(4) A is 3 times that of B, B is 2 times that of C, and A is 6 times that of C.. ()
(5) Decimal must be less than integer. ()
(6) One percent is greater than one tenth. ()
(7) The sum of the minuend, subtraction and difference is equal to twice that of the minuend. ()
(8)25×4÷25×4= 1( )
(9)436- 198=436-200-2( )
(10) If loom A weaves C meters in b hours, then each loom weaves C \a \b meters in an hour ().
3. multiple choice questions.
(1) A number is 1 multiple of B number, and A number () B number.
①> ②= ③