I believe that you can fill in (65438+ 0 for each question, *** 10) 1 3 2.5 correctly and quickly in the first part of the mathematics midterm paper (Volume II). The formula of addition calculation is (), and the formula of multiplication calculation is (). The product of 2.2 .6×0.27 has two decimal places, which is about (). 3, 2.768 1 accurate to one thousandth (), keep the integer as (). 4. When calculating 6.4÷0.32, it can be regarded as () ÷32, and the calculation result is (). 5, 3÷6=0.5. If both the dividend and divisor are enlarged by 10 times, the quotient is (). If the decimal point of the dividend is shifted two places to the left, the quotient is (). 6, 7.2888 ... The number of digits in the decimal part is (), which means () decimal. 7. Write a () product with a decimal of 2 .4×0. 17, and do not calculate it; 3.268÷0.38 The highest rank of the quotient is above the dividend (), and the quotient is (). 8. Using Law () and Law () to calculate 8×0.25×0.4× 12.5 can make the calculation simple. 9. Four times the number A is equal to five times the number B. It is known that the number B is 0.08 and the number A is (). The formula for finding number A is () 10, and the approximate value of a three-digit decimal with two decimal places is 3. 15. The minimum decimal number is () and the maximum decimal number is (). I believe you can make the right choice. [10] 1, the product of two numbers is 2.6, in which one factor is enlarged by 10 and the other factor is reduced by 100, and the quotient of the product is () a0.026b 0.26c 2. 6 D 2 6 2 and 0.54÷0.5 are. An integer b-one