Tip: It takes 7 times to saw a piece of wood into 8 sections.

Reference answer: 8- 1 = 7? 5×7=35 (minutes)?

A: It takes 35 minutes to finish sawing this piece of wood.

2. When a number is divided by 6, what numbers might its remainder be? What is the minimum remainder? What is the largest remainder? ?

Tip: The remainder should be a number smaller than the divisor (excluding 0), the smallest remainder is 1, and the largest remainder is a number smaller than the divisor 1.

Reference answer; The remainder may be 5,4,3,2,1; The smallest remainder is 1 and the largest remainder is 5.

3. The small pot should hold 5 cups of water, the big pot should hold 2 small pots and 3 cups of water, and how many cups of water should the big pot hold? ?

Tip: establish the connection between large pot water and glass water through small pot water.

Reference answer:? 5×2= 10 (cup) 10+3 = 13 (cup).

Answer: The cauldron should be filled with 13 glass of water.