Climb the mountain of mathematics and enjoy the challenge. Challenge leads to interest, wisdom lights up life, and mathematics and geometry lights up life. The following is my collection for your reference.

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Fill in the blanks. ***23 points * * *

1, dividend is 28, divisor is 4, and quotient is * * * *.

2. Read a formula and write four formulas. ***8 points * * *

262

3. Both addends are 7, and the sum is * * * *. The sum of six 4s is * * * *.

4. A barrel of 8 badminton, 3 barrels of * * * *. If these shuttlecocks are divided into four children, they can be given to * * * * *.

5, 35 ÷ 7 = * * * *, which means that * * * * is divided into * * * * *, and each copy is * * * * *.

6. Rewrite the addition formula into the multiplication formula.

*** 1***6+6+6+6+6=*** ***×*** *** ***2***8+8+8=*** ***×*** ***,

7. Xiaoming ate two apples a day for three days. There were * * * * apples missing from his plate, and there were * * * * apples left.

8. Write+,-or × in ○. *** 16 * * *

4○3= 12 6○3= 18 16○4= 12 4○3=7

5○6= 1 1 32○4=8 5○ 1=5 2○2=4

Second, see who is right! ***30 points * * *

6×4= 25÷5= 0×6= 9+4= 18÷2=

4× 1= 4+3= 45÷5= 5×9= 2×9=

18÷6= 8×4= 7+5= 25÷5= 2 1÷7=

14÷2= 12-3= 2×6= 16÷4= 7÷7=

6×3= 36÷4= 5×2= 12÷6= 28÷4=

12÷2= 9-3= 15÷5= 35÷7= 2×4=

Third, clever mouth and correct password. *** 18 * * *

49 * * * * * * * * * * 35 26 * * * * * *

March 8th * * * * April 6th * * * * * * 28.

* * * * * Twelve * * * Sixteen * * * * * got eight.

Four, ***9 points * * *

Verb (abbreviation for verb) is calculated vertically.

34+37-63= 23+76-54= 100-58+4 1= 79+2 1-26=

Sixth, solve the problem. ***20 points * * *

1. Each basket contains 3 pinecones. How many baskets do you need?

2. How many balloons are there?

4. The sophomores drew 32 pictures, 8 in each group. How many groups are there?

5. The school bought 3 boxes of colored pencils and 6 boxes of pencils. How many boxes of pens did the school buy?

8. The school held a sports meeting. There are 28 swimmers, high jumpers 13 and 57 runners. How many students participated in the three competitions?

9. Grandpa is 63 years old and Si Qi is 7 years old. How old is grandpa? People who have seen it also:

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