Subtracting multiples of 10

“Can your child quickly work out '80 − 50' or '70 − 40' in their head by thinking about how many tens are left?”

0 / 3 mastered

• ⬜Calculate 70 − 30 = 40
• ⬜Use base-ten blocks to show 80 − 50 = 30
• ⬜Explain that subtracting tens is like subtracting the tens digits