72-8= ? 5×9= 36-9= ? 57+9= ? 30+70=

76-40= 8×4= 7×5= ? 70-7= ? 35+8=

9+44= ? 5×4= 9×6= ? 24-7= ? 3×8=

7×8-20= 4×9+4= ? 32-20+50= ? 7-3×2=

Second, I'll fill it out. (Every empty point, ***28 points)

1.) Fill in the appropriate company name in brackets.

(1) a bed is about 200 (? ) 2 giraffes are about 3 (? )

③ A Chinese textbook is about 2 (? A building is 12 (? )

(5) primary school students spend 6 (? )。 The time to watch a movie is 120 (? )。

2.) Xiaoli is 83cm tall, Xiao Bing is 1m tall, and Xiaoli is shorter than Xiao Bing. ) centimeters.

3.)7+7+7+7=( ? ) written as multiplication formula is () pronounced as ();

4.) Both multipliers are 8, and the product is (? )。

5.) Can you use it? 0, 3 and 5 are composed of three digital cards (? ) two different numbers, the biggest of which is (? ), the smallest number is (? ), they are different (? )。

6.) The sum of 2 and 7 is () The sum of 2 7s is (), and the product of 2 7s is ().

7.)

8.) Fill in "-","-"or "=" in ○.

26○ 17+ 18 3 1○8○3×7 100cm○98m。

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

8×( ? )< 60 42>( ? )×6 27>4×( ? )

( ? )×5 9×( ? ) ? ( ? )×3