In 53, which number is the exponent?
3
List all the factors of 9
1, 3, 9
(10 + ?) x 5 = 13 x 5
? = …
3
Estimate: 21 x 6 =
120
Natakorn can eat 6 burgers in 1 hour. How many burgers could he eat in 5 hours?
30 Burgers
32 is equal to…
9
List the factors of 20
1, 2, 4, 5, 10, 20
Fill in the gap!
8,412 x 7 = (8,000 + ___ + 10 + 2) x 7
400
400 x 500
200,000
There are 10 Oreos in a pack. If Thanasate bought 2 packs of Oreos, how many Oreos would he have left after he ate 7 Oreos.
13 Oreos
The value of 104 is...
10,000
Pick the prime number out of the numbers below:
21, 25, 27, 29, 33, 35, 36
29
What multiplication problem does this area model represent?
38 x 24
Estimate: 31 x 49
1,500
Lattapol flew for 8 hours. If he flies for 23 miles per hour, how far did he fly in total?
184 miles
Four to the Power of Three is….
64
Find the prime factorization of 80 using exponents
24 x 5
Use the area model to find the product of 52 and 46:
2,392
About how much would 512 Pokémon cards cost if each card cost 5 baht?
2,500 baht
David eats two ice cream sandwiches each day from Monday to Friday.
If he eats the same amount each day, how many ice cream sandwiches would he eat across semester one? (Semester 1 is 20 weeks)
200 ice cream sandwiches
Three Squared times by Two Cubed is…
72
Find the Prime Factorization of 100,000
25 x 55
(80 + 7) x 6
(80 x 6) + (7 x 6)
480 + 42
522
Estimate: 32,472 x 856
About 30,000,000
or
27,000,000
A man has a goal to earn 106 in a year.
If he earns 105 baht each month, will he achieve his goal?
Yes!