First, I will fill it out. (15)
1. The multiplicand is 45, the multiplier is 30, and the product is (); The product of 25× 1 1 is ().
2. The multiplier is constant, and a few zeros are added at the end of the multiplicand, and () is added at the end of the product.
The product of 3.24 times 40 is (), and 30 times of 23 is ().
4. Multiply a number by 6 to get 2 16, and this number is ().
50 times of 5.24 is ().
6. Choose numbers to fill in the blanks
10 20 30 40 50 60 70 80 90
( )×( )= 1200 ( )×( )=2800
( )×( )=900 ( )×( )=800
Please ask the judges: (tick "√" in brackets for the right and "×" for the wrong) ×”)( 10/0)
The product of 1 25×40 has only 1 zero in the end. ()
2. The product of two digits multiplied by two digits may be four digits. ()
3.35+29× 47 is pronounced as the sum of 35 plus 38 multiplied by 47. ()
4.()× 70 < 4200, and 60 can be filled in brackets. ()
5. When calculating 45×33, the product of the two multiplications is 135. ()
Third, choose carefully. (Choose the serial number of the correct answer and fill in the brackets) (10)
The product of 1.25×300 is a number with () zeros at the end.
A. two b's, four c's and three c's.
2. Drinks 15 boxes, 20 bottles per box, one * * * has () bottles of drinks. ()
30 BC to 300 BC
3.50×( ) =2400 ( )
In 480 BC
4. The formula for the product of four digits is ()
a . 22×3 1 b . 425×3 1 c . 57×32
5.2 1 time is continuously added to 35, and the result is ()
635 BC to 735 BC
Fourth, please do it. .
1. column vertical calculation (3 points for each question, *** 12 points)
46×33= 95×30= 22×67= 45× 14=
2. Off-model calculation (3 points for each question, *** 18 points)
( 165-45)×4 ( 135+65)÷5 (46+32)×34
(40+35)×27 (69-35)×24 158+42×27
Five, solve the problem (5 points per question, ***35 points)
1. The store sold 25 boxes of ballpoint pens, each box 12, each 2 yuan. How much did a * * * sell?
2. Ren Dong Primary School organized 375 students to carry out "hand in hand" activities in township primary schools. They rented 36 buses from the automobile transportation company. Is it enough to rent a 10 car?
Xiao Qiang walks 75 meters per minute. He walked 15 minutes from home to the bookstore and 18 minutes to the park.
How far is it from Xiao Qiang's home to the bookstore?
How many meters is it from Xiao Qiang's home to the park?
4. sell apples. 25 boxes of apples, the unit price of apples is 5 yuan per kilogram.
(1) Apple weight per box16kg. A * * *, how many kilograms is it?
(2) How much can these apples sell?
The giraffe has 30 peaches, and the monkey has 7 fewer peaches than the giraffe's 12 times. How many peaches does this monkey have?
6. The price of a desk lamp in the shop is per 32 yuan. If you buy this desk lamp 15, how much will it cost?
7. 1 class has 49 students, each with 18 copies, and 32 classes have 50 students, each with 12 copies. 1 * * How many books are there in class? How many books are there in Class Two and Class Three?