First, fill in the blanks happily.
1. Fill in the blanks and write the formula.
There are () plates, each plate has () oranges, and one * * * has () oranges.
Addition formula: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Multiplication formula: _ _ _ _ _ _ _ _ _ _ _ _ _ or _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2. Both multipliers are 4, and the formula can be written as _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
3. One multiplier is 5, the other is 4, and the product is ().
4.5+5+5+5 is () (), rewritten as multiplication formula is (), and formula is ().
5. How much can I put in ()?
()×5 25 5×4 & gt； ()+4 16 & gt； 3×( )
6+6 >()×34×5 & gt； ()×36×6 & gt； 5×( )
6. Look at the formula in the picture.
[ ] ○ [ ] ○ [ ] =[ ]
[ ] ○ [ ] ○ [ ] =[ ]
☆☆☆ ☆☆☆ ☆☆☆ ☆☆☆☆
[ ] ○ [ ] ○ [ ] =[ ]
[ ] ○ [ ] ○ [ ] =[ ]
Second, complete the multiplication formula.
() 43 () 1235 () 55 () 36 () 68 was obtained.
() 735 () 636 () 832
() 936
Three. Fill in "+"-"x" in ○.
6○ 1=6 5○3=2 6○6= 12 3○6= 18 5○7=35
2○5= 12-2 3○4=6○2 20○2=3○6
Fourth, see who is right and who is wrong.
3×6= 4×5= 6×5= 3×8= 2×9= 2×7= 3×7= 4×8= 4×6= 6×2= 4×5-4= 2×6+4= 4×3-5= 6×6-9= 4×5+ 10=
Five, careful choice
The product of 1. is 18 and the formula is ().
A.9+9 B. 3×6 C. 10+8
2.5+5+5+4 can be calculated by ().
A.5×4 B. 5×4-4 C. 5×4- 1
3.3× 3 03+3, ○ Fill in ()
A.b . >； C. =
4. Six such flowers have () petals.
A.30 B、36 C、24
Sixth, solve the problem.
1. Xiaohong has three sets of story books, each with three books. How many story books does Little Yi Ming have?
[] ○ [] = [] (Ben)
2. The rabbit and the pig jump rope. The rabbit jumps six times, and the pig jumps as much as the rabbit. How many times do rabbits and pigs jump?
[] ○ [] = [] (below)
3. Pen 3 yuan notebook 4 yuan pencil box 5 yuan
(1), how much does it cost to buy five pens?
[] ○ [] = [] (yuan)
(2) How much does it cost to buy four notebooks?
[] ○ [] = [] (yuan)
(3) Is it enough to buy five pencil boxes with 30 yuan?
[] ○ [] = [] (yuan)
Enough [] is not enough []
4. A bottle of coke can fill 4 cups, and how many cups can six bottles of coke fill?
[] ○ [] = [] (cup)
There are 25 children in Class One, each child 1 cup. Is that enough?
Enough [] is not enough []