56÷8= answer 780-390 = answer 290- 130 = answer 62-37 = answer 6×7= answer 36÷4= answer 480+ 120= answer 4×9= answer 440+60=
Two. Fill in the blanks: (23 points)
1, in 4047, the front 4 means () and the back 4 means ().
2, five ones, four tens, nine thousands (), pronunciation ().
3, a four-digit number, its digits are 6, the digits on the tenth digit are 7, and all other digits are 0. This number is ().
4. 10000 is (), and the number less than 1 is (). The two digits of are (), and the smallest three digits are (). They are different (). The digits of a number are thousands, () digits and three digits are () digits.
5.9 The number greater than 99 1 is (), and the number less than 800 is ().
6, 5 km = () m 9 km = () km 400 cm = ()
7. Fill in ○ >,<, =
35 mm 4 cm 3 mm 29 cm 500 m 5 km
8. Fill in the appropriate length unit in ().
Desk height 7 () math book width 17 () car speed 60 () Xiaoming height 1()35 () one coin 1 coin thickness 2 ().
9. Line up.
8040 8400408040088004
()& gt()& gt()& gt()& gt( )
10,2005 Pronunciation: (), 40 10 Pronunciation: ().
1 1, a rectangle has four sides, () is equal in length; Four sides of a square, the length of four sides (), and both a rectangle and a square have four corners ().
Third, judge the question.
1, a quadrilateral whose four corners are right angles must be a square. ( )
2. The two numbers adjacent to 1200 are 1 100 and 1300. ()
3. Two identical squares can form a big rectangle. ( )
There are 64 hundred out of 46400. ( )
Xiao Peng's home is about 20 cm away from school. ( )
6.30 centimeters is longer than 3 meters. ( )
7. A 1 yuan coin is about 1cm thick. ( )
Fourth, column calculation
1, a number plus 234, and the sum is 32 1. What's this number?
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2. A number less than 758 is 153. What's this number?
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3. 168 is more than 347?
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4. What is the difference between a number minus 455 and 879?
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5. How much is148 less than 655?
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5. Estimate the following questions.
593+20 1 728-398 897- 103 309+204
Six, column vertical calculation, check with※.
39+287= 7 12-596= 900-298 = ※ 348+476= ※ 405-2 17=
7. Draw a rectangle with a length of 3 cm and a width of 2 cm on the grid paper below, and then draw a square with a side length of 3 cm. (The side length of each small square is 1 cm)
(grid diagram omitted)
Eight, solve the problem
1, a mobile phone in 540 yuan, a mobile phone 148 yuan, how much cheaper is a mobile phone than a mobile phone?
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2. The giraffe is 550 cm tall, the elephant is 290 cm shorter than the giraffe. How many centimeters tall is the elephant?
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3. Basketball is 2 18 less than football, and football is 506. How many basketballs are there?
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A piece of chalk used to be 7 cm long, but now it needs 6 mm. How long is this piece of chalk?
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5. Grandma keeps 500 white rabbits and black rabbits, 178 white rabbits. How many black rabbits are there?
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There are 900 new bicycles in the shopping mall. 337 vehicles were sold on Sunday morning, and 1 18 vehicles were sold in the afternoon.
(1) How many cars did you sell this afternoon?
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(2) How many cars were sold on Sunday?
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7. A bicycle is 368 yuan and a tape recorder is 247 yuan. Dad has 600 yuan money. Are these two enough?
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8. The road team built a road and completed it in two phases. 365 meters were built in the first phase and 526 meters in the second phase. How long is this road?
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