mr.akgol math review

rounding

100

rounding tens 

22

20

200

rounding to hundreds 

112 

100

300

rounding to ones 

1112

1112

400

rounding to hundreds 

121213

121200

500

rounding to hundredths 

211.222

211.2

place value

100

what is 2

1121

tens 

200

what is 5

1125

0nes 

300

what is 9

132922

hundreds 

400

what is 2

12111

thousands 

500

what is 3

12.33

tenths 

finding the unknow

100

x-12= 1112

x=1100 

200

o+119=1119

0=1000

300

p x 1134= 111134

p=110000

400

1123-n=221123

n=220000

500

1244.₁₂+ l= 111244.₁₂

110000.₁₂

adding

100

92+19 

111

200

-12+12

0 

300

562+230 

792 

400

111.12+100.12

211.24

500

192.232 + 122.22

314.452

subtraction

100

what is 342- 312

30

200

what is 1204- 234 

970 

300

3421-2111

1310 

400

4002-5022

-1020

500

1324.123 - 392.11

932.013