5 Angle +5 Angle = () yuan 15 points -5 points = () points = () Angle.

2. Fill in the blanks.

(1) Look at the number of digits. From the right, (d √) is (), the second is (), and the hundredth is ().

(2) The fourth number before 53 is ().

(3) Write three numbers with 1 that are ten digits less than single digits: () ().

(4)2 yuan 8 Angle = () Angle, 15 points = () Angle () points.

3. Judge right or wrong. Mark "√" in the right picture and "×" in the wrong question.

The two "6" in (1)66 have different meanings. ( )

(2) A rectangle has four sides, and the lengths of the four sides are not equal. ( )

(3) Five cents can be exchanged for five 1 minute. ( )

Four. Write "√" under the correct answer (dá) box (àn).

(1) The tenth digit with 7 is:

7 17 73 67

( ) ( ) ( ) ( )

(2) Numbers greater than 78 and less than 8 1 are:

79 80 8 1 82

( ) ( ) ( ) ( )

(3) A number has eight ones and five tens. This number is:

18 85 58 15

( ) ( ) ( ) ( )

5. fill in ">", "

56○65 80○79

30○33-3 24+40○46

7+5-3○ 18-9+ 1

16-7-8○6+3-8

6. Vertical calculation. And sort the numbers from the largest to the smallest.

( )>( )>( )>( )

Seven. Formula calculation.

(1) Both addends are 45. What's the total? (2) The minuend is 52, and the difference is 6. What is the minuend?

Eight. Application problem.

Cabbage, beans, tomatoes and radishes

34 kg, 28 kg, 36 kg and 55 kg

(1) How many Jin is Chinese cabbage less than (luó) bo?

(2) How many kilograms are tomatoes (SHI) more than beans?

(3) How much is the radish and cabbage?

Problem: There are two buckets (tǒng) of water, one bucket weighs (zheng)10 kg (j Ο n) and the other bucket weighs 14 kg. Pour a few kilograms from another bucket into the first bucket. Are these two barrels the same weight?

A: () Gold.

This set of questions is good, so children can practice!