25 pts. : Directions: Complete this review of lessons 3-1 & 3-2. There are 25 questions in total. 3-1: Multiplication
600 x 60 =
50 x 50 =
1,000 x 3 =
70 x 80 =
100 x 300 =
20 x 40 =
90 x 90 =
9 x 900 =
500 x 300 =
1,000 x 5 =

3-2: Estimate
Estimate to the nearest TENS place.
36
72
89
12
33

Estimate to the nearest HUNDREDS place.
125
770
364
923
755

Estimate to the nearest THOUSANDS place.
1,332
4,566
3,098
2,222
9,873

600 x 60 = 36,000

50 x 50 = 2,500

1,000 x 3 = 3,000

70 x 80 = 5,600

100 x 300 = 30,000

20 x 40 = 800

90 x 90 = 8,100

9 x 900 = 8,100

500 x 300 = 150,000

1,000 x 5 = 5,000

125 - 100

770 - 800

364 - 400

923 - 900

755 - 800

Step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

600,000,000,000, or 6e14

step-by-step explanation: