1.( 1)5×27 means 27 27 27 ()

(2) Three digits times one digit, and the product must be four digits. ()

2. The product of (1)160× 40 has two zeros at the end. ()

(2)384×4= 1236 ( ) (3) ? ( )

54

× 15

270

54

8 10

Second, the oral math problem (65438+ 02 points for each small question *** 24 points)

1.25×40= 6×28=

89×0= 1 1× 12=

30×44= 38×60=

2. 160×0 100= 98×0 108=

52×7 40= 70 80×0=

155? 8? 245×3= 1000? 8? 2 125×8=

Three. Calculation problem (3 points for each problem 1-4, 5 points 12, * * * 24 points)

1.(4 12 1 2389)÷7

2.67 1× 15? 8? 2974

3.469× 12 1492

4.405×(32 13? 8? 23 189)

5. 175÷25= 70÷ 14=

18× 19= 56÷28=

2 1× 13= 1 1×25=

Four. Narrative topic (5 points for each small question *** 10)

1. What is the number of 100 that is 36 times more than 142?

What's the difference between 2.3 100 and 15 168?

Verb (abbreviation of verb) application problem (8 points for each small question *** 32 points)

1. This fertilizer plant can produce 485 tons of fertilizer every month. How many tons can you produce a year?

The fruit shop sent 60 boxes of apples, 25 kilograms each, and sold 250 kilograms. How many kilograms are left?

3. The gardener planted 270 willow trees, and the number of poplar trees was 15 times that of willow trees. How much have these two kinds of trees planted?

4. The road team builds roads every day 1 10 meters, which has been repaired for 25 days, and there are 50 meters left. What is the total length of this road?