Fill in the blanks. 1, 65+360 ÷ (20-5), calculate () first, then (), and finally (). The number is () 2,72+68+132 =+(○) 35× 92+35. Four hundred and five point seven six writing: (). 4. Take the lighthouse as the observation point: Island A is oblique, with a distance of kilometers; Island B is in an oblique direction, with a distance of kilometers. 5. There were 320 people who visited the museum in the morning, 85 people left at noon and came in the afternoon 128 people. There are () people now. 6. There is a number that is 3 in decimal, 7 in percentile and 0 in digits and decimals. This number is written as () and pronounced as (). 7.0.5 has () 1 100.48, () 0.0 18 and 3. 19, and 9 in 0.93 means () 9 and 0.70.609. 10 and 76.00 1 are pronounced as: (), and the lowest digit is (). Second, please be a small referee. 1, what is the product of 85 times 23 and 77? The correct formula is: 85× 23+77 () 2,231+155+469 =155+(231+469) = 855. Commutative law and associative law using addition () 3. Add after the decimal point. () 4, 0.3 and 0.30 have the same size and the same counting unit. () 5, 30 north by west, or 30 north by west (). Third, choose a choice with your heart. 1, Xiaojun copied the formula into 60 ÷ (4+2) when calculating 60 ÷ (4+2), so the calculation results of the two problems are different (). a，8 B，7 C，5 2。 I bought 8 sets of stainless steel bowls in the school cafeteria, each set of 9 stainless steel bowls cost 2 16 yuan. () Formula can calculate how much each bowl costs? The "6" in () a, 2 16÷9×8 B, 2 16÷8×9 C, 216 ÷ (9× 8) 3,3.456 is in the position of (). A, b percent, c per thousand, 104, and the following formula () uses multiplication and division. a，42× ( 18+ 12) = 424× 30b，a× b+a× c = a× (b+c) c，4× a× 5 = a× (4× 5) 5。 Do not change the number, put 8.655. A, 0.08 1 B, 8.00 1 C, 8. 100 Fourth, let's see who is the most careful. 1, oral calculation. 546—299 = 90×70 = 27×l0 = 37×68×0 = 25× 14-25× 10 = 650÷50 = 98+ 17 = 103×。 How to calculate 520× (80-720 ÷ 9) 350-(350-350 ÷ 70) 5580-(120× 25-2991) 3 simply; 168-52-48 25× 16 1300÷25÷4 156×L0L- 156×(29×L25)540+78+65438。 1, there are 32 boxes of apples, each box is 20kg. 5 yuan a catty of apples, how much can these apples sell? There were 1262 visitors in the Science Park on Monday. There were 738 tourists on Tuesday morning and 525 tourists in the afternoon. How many tourists are there these two days? 3. A library has 24 identical bookshelves, each with 4 floors and 240 books on each floor. How many books can these shelves hold? A clothing factory produces 850 suits in five days. According to this calculation, how many suits are produced a month? (30 days in a month) 5. Xiaolan's mother bought food for 50 yuan, including 28 yuan for meat dishes and 6 yuan for vegetarian dishes. How much is left? 6. The fruit shop brought 25 baskets of apples and pears, each with 6 kilograms of apples and 8 kilograms of pears. How many kilograms are apples and pears? 7. An engineering team builds 85 meters of roads every day. According to this calculation, how many meters will the four engineering teams build roads in seven days?

First, let's see who is the smartest. (***36 points)

1. What can I put in the brackets? (4 points)

4×()& lt； 30()×9 & lt； 62

3×()& lt； 17()×7 & lt； 6 1

2. Find the pattern and fill in the numbers. (5 points)

408、409、 、 、

、 450、500、550。

3. put ">"