2-digit multiplication
62 x 46 = n
n = 2,852
rounding
changing a number to make the equation easier
example: 36 to 40
x 42 to x 40 = 1600
select all the expressions that are equal to 260
a 23 x 10
b 20 x 10 + 3 x 210
c 13 x 20
d 1 x 20 + 3 x 10
e 10 x 20 + 3 x 20
c , e
74 x 25 = n
n = 1,950
compatible numbers
turning a number into a number it is closest to (dont get confused with rounding)
example: 62 - 60 74 - 75
43 - 45 68 - 70
the product of two factors is 2000 one factor is 50 whats the other
40
56 x 83 = n
n = 4,648
product
answer to a multiplication problem
one rectangle is 21 feet long 16 feet wide. Another rectangle is 17 feet long and 25 feet wide which rectangle is bigger
17 feet and 25 wide is longer b/c 425 is greater than 336
100 x 56 = n
n = 1,100
partial products
taking simple problems from a multiplication problem and adding them to get the answer
free points
free points
92 x 150 = n
n = 13,800
array
a picture showing a multiplication problem
22 x 36 + 42 x 64 - 8 -3 +4
3,463