1, according to? Eight, nine and seventy-two Write two multiplication formulas of this formula: _ _ _ _ _ and _ _ _ _ _ _

2, fill in the appropriate ` unit name.

Xiaodong's height is123 ();

The classroom is about 8 () long;

Xiaohong's stride is about 48 ();

Pencil is about 16 ()

The sum of 3, 37 and 24 is (), and the difference is ().

4. Arrange the following quantities in descending order.

5 m 50 cm 5 m 50 cm 5 cm

()& lt()& lt()& lt( )

5. A triangle has () angles, among which a right triangle has () right angles.

Five times of 6 plus 8 is (), the listed formula is (), and the formula used for calculation is ().

7. One factor is 4, the other factor is 9, and the product is ().

8. Fill in ○? +-& gt； ? 、? & lt？ Or? =? .

8? 6○48 30○6=24 24+38○80-28

5? 9○46 7? 9 ○ 16 150cm ○ 2m

9. What is the maximum number of words in brackets?

( )? 8 & lt50 5? ()& lt27 70 >； 9? ( )

10, four good friends meet and hug each other once, and hug () once.

?

Second, the calculation problem. (20 points+12 points =32 points)

1, a number written directly. (65438+ 0 points for each question, ***20 points)

6? 9= 8? 8= 28+4= 2? 2=

7? 4= 17+43= 8? 1= 80-8=

58-28= 9? 3= 4? 3= 34+ 17=

4+5= 100- 19= 7? 8= 4? 5=

7? 6- 12= 2? 8+4= 8? 4+8= 2? 5+5=

2. Write the following questions. (3 points for each question, *** 12 points)

76-24= 47+27= 36+29-48= 29+35+9=