$0.69/sprint

• Add by making 10 with 2 and 5 as addends
• Add by making 10 with 3 and 4 as addends
• Add by making 10 with 6 as an addend
• Add by making 10 with 7 as an addend
• Add by making 10 with 8 as an addend
• Add by making 10 with 9 as an addend
• Add 3 single-digit numbers by making 10
• Add 3 single-digit numbers by making 10 (2)
• Add 3 single-digit numbers by making 10 (3)