Adding Two Numbers Directly.Another term for directly is “no synthesis.” When adding directly all the beads you need are available to push to the separation.

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Presentation transcript:

Adding Two Numbers Directly.Another term for directly is “no synthesis.” When adding directly all the beads you need are available to push to the separation bar. From Developed by Dr. L. Penny Rosenblum

3+1 = 4 Set three 1-beads in the units column. Ask: “Can I add 1 directly?” Answer” “Yes I can.” Set a 1-bead in the units column. You now have 4 beads in the unit column. Sum = 4 From Developed by Dr. L. Penny Rosenblum

5+3 = 8 Set a 5-bead in the units column. Ask: “Can I add 3 directly?” Answer” “Yes I can.” Set three 1-beads in the units column. You now have 8 beads in the units column. Sum = 8 From Developed by Dr. L. Penny Rosenblum

Set two 1-beads in the units column. Ask: “Can I add 2 directly?” Answer” “Yes I can.” Set two 1-beads in the units column. You now have 4 beads in the units column. Sum = = 4 From Developed by Dr. L. Penny Rosenblum

Try doing on your own. Say the steps! From Developed by Dr. L. Penny Rosenblum

6 + 3 = 9 Set a 5-bead and a 1-bead in the units column. Ask: “Can I add 3 directly?” Answer” “Yes I can.” Set three 1-beads in the units column. You now have 9 beads in the units column. Sum = 9 From Developed by Dr. L. Penny Rosenblum

= 80 Set three 1-beads in the tens column. Ask: “Can I add 50 directly?” Answer” “Yes I can.” Set a 5-bead in the tens column. You now have 8 beads in the tens column. Sum = 80 From Developed by Dr. L. Penny Rosenblum

Try doing on your own. Say the steps! From Developed by Dr. L. Penny Rosenblum

= 70 Set a 5-bead and a 1-bead in the tens column. Ask: “Can I add 10 directly?” Answer” “Yes I can.” Set a 1-bead in the tens column. You now have 7 beads in the tens column. Sum = 70 From Developed by Dr. L. Penny Rosenblum

= 48 Set four 1-beads in the tens column and a 5-bead in the units column. Ask: “Can I add 3 directly?” Answer” “Yes I can.” Set three 1-beads in the units column. Sum = 48 From Developed by Dr. L. Penny Rosenblum

= 87 Set two 1-beads in the tens column and 7 beads in the units column. Ask: “Can I add 60 directly?” Answer” “Yes I can.” Set a 5-bead and a 1-bead in the tens column. Sum = 87 From Developed by Dr. L. Penny Rosenblum

= 75 Set a 5-bead in the tens column and a 5-bead in the units column. Ask: “Can I add 20 directly?” Answer” “Yes I can.” Set two 1-beads in the tens column. Sum = 75 From Developed by Dr. L. Penny Rosenblum

= 39 Set a 1-bead in the tens column and three 1-beads in the units column. Ask: “Can I add 20 directly?” Answer” “Yes I can.” Set two 1-beads in the ten column. Ask “Can I add 6 directly?” Answer” “Yes I can.” Set a 5-bead and a 1-bead in the units column. Sum = 39 From Developed by Dr. L. Penny Rosenblum

= 98 Set four 1-beads in the tens column and 6 beads in the units column. Ask: “Can I add 50 directly?” Answer” “Yes I can.” Set a 5-bead in the tens column. Ask “Can I add 2 directly?” Answer” “Yes I can.” Set two 1-beads in the units column. Sum = 98 From Developed by Dr. L. Penny Rosenblum

= 848 Set two 1-beads in the hundreds column, four 1-beads in the tens column and 7 beads in the units column. Ask: “Can I add 600 directly?” Answer” “Yes I can.” Set 600 in the hundred columns. Ask: “Can I add 0 directly?” Answer” “Yes I can.” Set 0 by tapping the silver bar in the tens column. Ask: “Can I add 1 directly?” Answer” “Yes I can.” Set 1 in the units column. Sum = 848 From Developed by Dr. L. Penny Rosenblum

= 888 Set a 5-bead in the hundreds column, 6 beads in the tens column and 7 beads in the units column. Ask: “Can I add 300 directly?” Answer” “Yes I can.” Set 300 in the hundred columns. Ask: “Can I add 20 directly?” Answer” “Yes I can.” Set 20 in the tens column. Ask: “Can I add 1 directly?” Answer” “Yes I can.” Set 1 in the units column. Sum = 888 From Developed by Dr. L. Penny Rosenblum