1.- Write this number: one unit and thirteen ten thousandths
a) 1. 013
b) 1.13
c) 1.0013
d) 13.1
2.- How many thousandths are 25 tenths?
a) 2500
b) 250
c) 25
d) 0.025
3.- Order from lower to greater: 0.1 -0.1 0.07 -0.07 0 -0.11
a) -0.7<-0.1<-0.011<0<0.07<0.1
b) -0.11<-0.1<-0.07<0<0.07<0.1
c) -0.11<-0.07<-0.1<0<0.1<0.07
d) -0.11<-0.1<-0.07<0<0.1<0.07
4.- Round 3.9956 to the nearest hundredth
a) 4
b) 4.0
c) 3.99
d) 4.00
5. 3.89 + 66.908 + 1.1 + 2.33 =
a) 74.28
b) 74.22
c) 74.228
d) 75.228
6. 789.11 - 2.907 =
a) 786.203
b) 786.23
c) 785.203
d) 786.230
7. 23.45 · 111.7 =
a) 261.9365
b) 2619.365
c) 26196.35
d) 2.619635
8. 345.18:33 =
a) 10.46
b) 104.6
c) 1.046
d) 1046
9. 675.27:12.2 =
a) 5535
b) 553.5
c) 5.535
d) 55.35
10.- The square root of 643.6369 is
a) 25
b) 25.37
c) 2537
d) None of them
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