diff --git a/tests/all.txt b/tests/all.txt
index 6d21495..705ea2e 100644
--- a/tests/all.txt
+++ b/tests/all.txt
@@ -6,4 +6,5 @@
 divide
 modulus
 power
+sqrt
 basic
diff --git a/tests/divide.txt b/tests/divide.txt
index e69de29..5297d84 100644
--- a/tests/divide.txt
+++ b/tests/divide.txt
@@ -0,0 +1,29 @@
+0 / 1
+0 / 321566
+0 / 0.3984567238456
+1 / 1287469297356
+1 / 0.2395672438567234
+1 / 237586239856.0293596728392360
+1249687284356 / 3027949207835207
+378617298617396719 / 35748521
+9348576237845624358/ 0.9857829375461
+35768293846193284 / 2374568947.045762839567823
+-78987234567812345 / 876542837618936
+-356789237555535468 / 0.3375273860984786903
+-5203475364850390 / 435742903748307.70869378534043296404530458
+-0.37861723347576903 / 7385770896
+-0.399454682043962 / 0.34824389304
+-0.6920414523873204 / 356489645223.76076045304879030
+-35872917389671.7573280963748 / 73924708
+-78375896314.4836709876983 / 0.78356798637817
+-2374123896417.143789621437581 / 347821469423789.1473856783960
+-896729350238549726 / -34976289345762
+-2374568293458762348596 / -0.8792370647234987679
+-237584692306721845726038 / -21783910782374529637.978102738746189024761
+-0.23457980123576298375682 / -1375486293874612
+-0.173897061862478951264 / -0.8179327486017634987516298745
+-0.9186739823576829347586 / -0.235678293458756239846
+-0.9375896183746982374568 / -13784962873546.0928729395476283745
+-2930754618923467.12323745862937465 / -734869238465
+-23745861923467.874675129834675 / -0.23542357869124756
+-3878923750692883.7238596702834756902 / -7384192674957215364986723.9738461923487621983
diff --git a/tests/modulus.txt b/tests/modulus.txt
index e69de29..70fd98f 100644
--- a/tests/modulus.txt
+++ b/tests/modulus.txt
@@ -0,0 +1,65 @@
+1 % 1
+2 % 1
+16 % 4
+15 % 4
+17 % 4
+2389473 % 5
+39240687239 % 1
+346728934 % 23958
+3496723859067234 % 298375462837546928347623059375486
+-1 % 1
+-2 % 1
+-47589634875689345 % 37869235
+-1274852934765 % 2387628935486273546
+-6324758963 % 237854962
+1 % -1
+2 % -1
+2 % -2
+2 % -3
+16 % 5
+15 % 5
+14 % 5
+89237423 % -237856923854
+123647238946 % -12467
+-1 % -1
+-2 % -1
+-2 % -2
+-2 % -3
+-13 % -7
+-14 % -7
+-15 % -7
+-12784956 % -32746
+-127849612 % -23712347682193
+scale = 0
+1 % 1
+2 % 1
+16 % 4
+15 % 4
+17 % 4
+2389473 % 5
+39240687239 % 1
+346728934 % 23958
+3496723859067234 % 298375462837546928347623059375486
+-1 % 1
+-2 % 1
+-47589634875689345 % 37869235
+-1274852934765 % 2387628935486273546
+-6324758963 % 237854962
+1 % -1
+2 % -1
+2 % -2
+2 % -3
+16 % 5
+15 % 5
+14 % 5
+89237423 % -237856923854
+123647238946 % -12467
+-1 % -1
+-2 % -1
+-2 % -2
+-2 % -3
+-13 % -7
+-14 % -7
+-15 % -7
+-12784956 % -32746
+-127849612 % -23712347682193
diff --git a/tests/multiply.txt b/tests/multiply.txt
index e69de29..a6014fe 100644
--- a/tests/multiply.txt
+++ b/tests/multiply.txt
@@ -0,0 +1,31 @@
+0 * 0
+1 * 0
+0 * 1
+0 * 2498752389672835476
+873246913745129084576134 * 0
+1 * 472638590273489273456
+12374861230476103672835496 * 1
+1892467513846753 * 1872439821374591038746
+328962735862.2973546835638947635 * 1728465791348762356
+38745962374538.387427384672934867234 * 0.1932476528394672837568923754
+9878894576289457634856.2738627161689017387608947567654 * 37842939768237596237854203.29874372139852739126739621793162
+-1 * 1
+-1 * 2
+78893457 * -34876238956
+235678324957634 * -0.2349578349672389576
+-12849567821934 * 12738462937681
+1274861293467.927843682937462 * -28935678239
+2936077239872.12937462836 * -0.012842357682435762
+2387692387566.2378569237546 * -272189345628.123875629835876
+0.012348629356782835962 * -23487692356
+0.4768349567348675934 * -0.23756834576934857638495
+0.98748395367485962735486 * -4675839462354867.376834956738456
+-321784627934586 * -235762378596
+-32578623567892356 * -0.32567384579638456
+-35768232346876 * -2348672935602387620.28375682349576237856
+-0.2356728394765234 * -238759624356978
+-0.2345768212346780 * -0.235768124697074385948943532045
+-0.370873860736785306278630 * -7835678398607.7086378076867096270
+-78365713707.7089637863786730 * -738580798679306780
+-73867038956790490258249 * -0.7379862716391723672803679
+-378621971598721837710387 * -98465373878350798.09743896037963078560
diff --git a/tests/power.txt b/tests/power.txt
index e69de29..22656b5 100644
--- a/tests/power.txt
+++ b/tests/power.txt
@@ -0,0 +1,44 @@
+0 ^ 0
+0 ^ 1
+0 ^ 189427628936
+0 ^ -127486971234
+1 ^ 0
+39746823 ^ 0
+0.238672983O47682 ^ 0
+18394762374689237468.97354862973846 ^ 0
+1 ^ 1
+2 ^ 1
+18927361346 ^ 1
+0.23523785962738592635777 ^ 1
+328956734869213746.89782398457234 ^ 1
+8937 ^ 98
+0.124876812394 ^ 239658
+93074628934762.283946789234576 ^ 13849672834
+1 ^ -1
+2 ^ -1
+10 ^ -1
+683734768 ^ -1
+38579623756.897937568235 ^ -1
+1 ^ -32467
+2 ^ -53
+23897682793 ^ -213768
+-1 ^ 1
+-1 ^ 2
+-2 ^ 1
+-2 ^ 2
+-2376482 ^ 29486
+-374683 ^ 284968293783
+-0.2385762834956 ^ 38763546
+-0.354867234856 ^ 35786239547
+-4267389562735.2345768293 ^ 28374562983
+-3249867235486.32462738456 ^ 237854692356
+-1 ^ -1
+-1 ^ -2
+-2 ^ -1
+-2 ^ -2
+-2378469 ^ -2930846
+-7849563 ^ -23904867
+-0.235768923546 ^ -872362345
+-0.23485672356 ^ -78123496734
+-1789248672.234786 ^ -8796128394
+-12748692134.3467829 ^ -7689345865
diff --git a/tests/sqrt.txt b/tests/sqrt.txt
new file mode 100644
index 0000000..7e1a963
--- /dev/null
+++ b/tests/sqrt.txt
@@ -0,0 +1,13 @@
+scale = 20
+sqrt(0)
+sqrt(1)
+sqrt(2)
+sqrt(4)
+sqrt(9)
+sqrt(16)
+sqrt(25)
+sqrt(121)
+sqrt(48765)
+sqrt(9287356207356)
+sqrt(0.189274385967238956872354)
+sqrt(12389467137496823.134567829387456283946)
diff --git a/tests/subtract.txt b/tests/subtract.txt
index 0ed4cbd..d65170f 100644
--- a/tests/subtract.txt
+++ b/tests/subtract.txt
@@ -4,4 +4,25 @@
 1 - 1
 5 - 2
 2 - 9
-
+321974 - 12845976238457
+2874519803456710938465- 384723854
+10000000000000000000000000000000000000000 - 999999999999999999999999999999999999999
+10000000000000000000000000000000000000000 - 9999999999999999999999999999999999999999
+10000000000000000000000000000000000000000 - 999999999999999999999999999999999999999.99999999999999999999999999999999999
+10000000000000000000000000000000000000000 - 9999999999999999999999999999999999999999.9999999999999999999999999999999999
+10000000000000000000000000000000000000000 - 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000001
+10000000000000000000000000000000000000001 - 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000001
+10000000000000000000000000000000000000000.0000000001 - 0.0000000000000000000000000000000000000000000000000000000000000000000000000001
+-2 - 6
+-23784692345 - 182934721309467230894628735496027345
+-224352354962873059862 - -1245723576829456278354960278345
+-3468273598 - -12354243
+-0.92345768293 - -2354768923
+-712384634.123476823 - -24768293376
+-1879234638 - -0.917234869234
+-0.9172438692134 - -0.971284967124
+-0.1283475123465 - -0.937462346
+-124765829346.2837468293562 - -0.923467829346
+-12476829385769 - -1928476259034.8378629356
+-0.38476284395876345 - -94875394587623.2357869324857
+-4674596708467.34754789403674343567 - -48672394852354698.237548629345