Name Date Solve using mental math. 8 7 = _____ 38 7 = _____ 38 8 = ______ 38 9 = ______ – – – – 7 6 = _____ 87 6 = _____ 87 7 = ______ 87 8 = ______ – – – – Solve using your place value chart and place value disks. Unbundle a ten, if needed. Think about which problems you can solve mentally, too! a. 28 7 = _____ 28 9 = ______ – – 25 5 = _____ 25 6 = ______ – – 30 5 = _____ 33 5 = ______ – – 47 22 = _____ 41 22 = _____ – – 44 16 = _____ 44 26 = _____ – – 70 28 = _____ 80 28 = _____ – –
Name Date Solve using mental math. 8 – 7 = _____ 38 – 7 = _____ 38 – 8 = ______ 38 – 9 = ______ 7 – 6 = _____ 87 – 6 = _____ 87 – 7 = ______ 87 – 8 = ______ Solve using your place value chart and place value disks. Unbundle a ten, if needed. Think about which problems you can solve mentally, too! a. 28 – 7 = _____ 28 – 9 = ______ 25 – 5 = _____ 25 – 6 = ______ 30 – 5 = _____ 33 – 5 = ______ 47 – 22 = _____ 41 – 22 = _____ 44 – 16 = _____ 44 – 26 = _____ 70 – 28 = _____ 80 – 28 = _____