Math Masterminds

Place Value

100

Which digit is in the 100's place in the number 45,283?

2

200

What is the value of the 3 in the number 386?

300

300

How many 10's are in the number 6,873?

7

400

What digit is in the 1,000's place in the number 567,289?

7

500

What is the value of the 5 in the number 532,196?

500,000

Mental Addition

100

115+300

415

200

105+610

715

300

421+220

641

400

513+607

1,120

500

517+323

840

Rounding

100

Round the number 530 to the nearest 100's

500

200

Round the number 687 to the nearest 10's place

690

300

Round the number 5,565 to the nearest 100's place.

5,600

400

Round the number 5,998 to the nearest hundreds place.

6,000

500

Round the number 6,988 to the nearest 100's place.

7,000

Mental Subtraction

100

12-4

8

200

35-22

13

300

64-31

33

400

143-121

22

500

532-411

121

Story Problems

100

I have 70 pennies, how many more do I need to get to 100?

30

200

I have 160 flowers, how many more do I need to get to 200?

40

300

There are 23 people on a bus and 11 get off, how many people are left on the bus?

12

400

Mrs. Wentink has 154 stickers and gets a new pack with 25 stickers. How many stickers does Mrs. Wentink have in all?

179

500

Mrs. Wassell has 5 super-smart students!!!! Because they are so smart Mr. Hartley decides to give her 189 more students!! How many students does Mrs. Wassell have now?

194