Arrays
Which equation shows the number of x's in the array?
x x x x x x
x x x x x x
x x x x x x
3 x 6 = 18
What is 10 x 300?
3,000
In 2 x 49, how can you break apart the 49 to make it easier to solve?
40 and 9
What is 2 x 4?
8
Which equation shows the number of x's in the array?
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
4 x 10 = 40
What is 4 x 2,000?
8,000
How could you break this equation apart to make it easier to solve?
4 x 45
4 x 40 and 4 x 5
What is 3 x 26?
78
Create an array for 3 x 7.
x x x x x x x
x x x x x x x
Complete this statement. To find 3 × 800, multiply 3 and 8. Then write _____ zeros at the end.
2
Which is the same as 7 × 57?
A.35 + 49
B.350 + 49
C.350 + 490
D.7 + 57
What is 9 × 62?
578
Create an array for 5 x 6.
x x x x x x
x x x x x x
x x x x x x
x x x x x x
x x x x x x
Edgar wrote a whole number ending in 4 zeros. If he multiplies the number by 10, how many zeros should be in the product?
5
What partial products will help you find the product 4 × 205?
4 x 200 and 4 x 5
A school has 6 fourth-grade classrooms and each classroom has 28 students. What equation will help you find out how many 4th grade students there are?
6 x 28
Create an array for 8 x 9.
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
Find the product of 7 and 80.
560
Which addition sentence shows how to use partial products to find 2 × 28?
4 + 16 = 20
What is 6 x 28?
168