addition1=ADDITION: Two 1-digit numbers: Sums to 10 addition2=ADDITION: Two 1-digit numbers: Sums 11 to 18 addition3=ADDITION: 1- to 2-digit number plus 1- to 2-digit number: No regrouping addition4=ADDITION: Two 2-digit numbers: No regrouping addition5=ADDITION: Two 3-digit numbers: No regrouping addition6=ADDITION: Three to five 1-digit numbers addition7=ADDITION: Three to five 2-digit numbers: No regrouping addition8=ADDITION: Three to five 3- and 4-digit numbers: No regrouping addition9=ADDITION: 1- to 2-digit number plus 1- to 2-digit number: Regrouping addition10=ADDITION: Two 2-digit numbers: Regrouping addition11=ADDITION: 2- to 3-digit number plus 2- to 3-digit number: Regrouping from 1's column only addition12=ADDITION: 2- to 3-digit number plus 2- to 3-digit number: Regrouping from 10's column only addition13=ADDITION: 2- to 3-digit number plus 2- to 3-digit number: Regrouping from 1's & 10's columns addition14=ADDITION: 3-digit number plus 3-digit number: Regrouping from 1's column only addition15=ADDITION: 3-digit number plus 3-digit number: Regrouping from 1o's column only addition16=ADDITION: 3-digit number plus 3-digit number: Regrouping from 1's & 10's columns addition17=ADDITION: 4-digit number plus 4-digit number: Regrouping in 1 to 3 columns addition18=ADDITION: 5- to 6-digit number plus 5- to 6-digit number: Regrouping in any column addition19=ADDITION: Three to five 2-digit numbers: Regrouping addition20=ADDITION: Three to five 3-digit numbers: Regrouping in any column subtraction1=SUBTRACTION: Two 1-digit numbers: 0 to 9 subtraction2=SUBTRACTION: 1-digit number from a 1- or 2-digit number: no regrouping subtraction3=SUBTRACTION: 2-digit number from a 2-digit number: no regrouping subtraction4=SUBTRACTION: 3-digit number from a 3-digit number: no regrouping subtraction5=SUBTRACTION: Two 4-digit numbers: no regrouping subtraction6=SUBTRACTION: 1-digit number from a 2-digit number: regrouping subtraction7=SUBTRACTION: 2-digit number from a 2-digit number: regrouping subtraction8=SUBTRACTION: 3-digit number from a 3-digit number: regrouping from 1's column only subtraction9=SUBTRACTION: 3-digit number from a 3-digit number: regrouping from 10's column only subtraction10=SUBTRACTION: 3-digit number from a 3-digit number: regrouping from 1's & 10's columns subtraction11=SUBTRACTION: 4-digit number from a 4-digit number: regrouping from 1's column only subtraction12=SUBTRACTION: 4-digit number from a 4-digit number: regrouping from 10's column only subtraction13=SUBTRACTION: 4-digit number from a 34digit number: regrouping from 1's & 10's columns subtraction14=SUBTRACTION: 4-digit number from a 4-digit number: regrouping from 1's, 10's, & 100's columns subtraction15=SUBTRACTION: 6-digit number from 6-digit number: regrouping in any column division1=DIVISION: Division facts: 0 to 9 division2=DIVISION: 2-digit number divided by 1-digit number: no remainder division3=DIVISION: 2-digit number divided by 1-digit number: remainder division4=DIVISION: 3-digit number divided by 1-digit number: no remainder division5=DIVISION: 3-digit number divided by 1-digit number: remainder division6=DIVISION: 4-digit number divided by 1-digit number: no remainder division7=DIVISION: 4-digit number divided by 1-digit number: remainder division8=DIVISION: 3-digit number divided by 2-digit number: no remainder division9=DIVISION: 3-digit number divided by 2-digit number: remainder division10=DIVISION: 4-digit number divided by 2-digit number: no remainder division11=DIVISION: 4-digit number divided by 2-digit number: remainder division12=DIVISION: 5-digit number divided by 2-digit number: no remainder division13=DIVISION: 5-digit number divided by 2-digit number: remainder division14=DIVISION: 14. 4-digit number divided by 3-digit number: no remainder division15=DIVISION: 4-digit number divided by 3-digit number: remainder division16=DIVISION: 5-digit number divided by 3-digit number: no remainder division17=DIVISION: 5-digit number divided by 3-digit number: remainder division18=DIVISION: 6-digit number divided by 3-digit number: no remainder division19=DIVISION: 6-digit number divided by 3-digit number: remainder division20=DIVISION: 5-digit number divided by 4-digit number: no remainder division21=DIVISION: 5-digit number divided by 4-digit number: remainder division22=DIVISION: 6-digit number divided by 4-digit number: no remainder division23=DIVISION: 6-digit number divided by 4-digit number: remainder division24=DIVISION: 7-digit number divided by 4-digit number: no remainder division25=DIVISION: 7-digit number divided by 4-digit number: remainder