1, complete the formula.

Sanqi () Five () Forty () Sixteen

VII () 56 16 () () 24

2、

Addition formula (), multiplication formula (), pronounced as: (),

3. A blackboard is about 4 () long. Xiaoli is probably 1 12 ().

4. Write something that can be rewritten as multiplication formula.

2+2+2+2 5+7+5+7-3 7+7+7

5. Fill in the box with ">"

35+6 422× 6124m 400m

6. Fill in the appropriate numbers in the box. (1.5 points)

× 6=42 ×5=40 40+ =48

7. There are () line segments and () angles in the picture on the right.

There are () right angles among them.

8. Fill in the box with "+"-"or" × ". (1.5 points)

4 2=6 40 8=32 6 7=42

9. That's what you see in the mirror.

Circle it.

What did they see? Please contact me. (1.5 points)

(Black the □ before the correct answer). (***5 points)

1, and () in the figure below is an angle.

□ □ □

2. In the figure below, the symmetrical figure is ().

□ □ □

3, there are () kinds of wear and tear.

□3 □4 □5

4. In the following formula, the product is ().

□5×6 □9×2 □8×4

Xiaoming spent 50 yuan on Qian Qi and 28 yuan on story books. He has about () yuan left.

□22 □30 □20

Three. (33 points)

1, I'm good at verbal calculation! (9 points)

5×7= 7+45= 9×6= 6× 1= 9×7=

90-5= 30-4×7= 3×8+ 19= 25+ 15-20=

I can calculate by hand, I don't believe you! (12)

90-47= 59+26= 63-28=

37+46-54= 8 1-32-27= 42-34+57=

3. How much can I put in ()? (8 points)

( )×45×( ) 7×( )9×( )

( )×8( )×9 ( )×6