DẠY TRẺ LÀM PHÉP TÍNH

59 x = 11 x = 5x0=0 3x0=0 2x0=0 8–8=0 47 – 47 = 0 3–3=0 0x0=0 2–2=0 0÷2=0 1x0=0 4x5x0=0 20 ÷ x = 6x0x8x5=0 24 ÷ x = 14 x ÷ = 100 x ÷ 10 = 0 0 1–1=0 65 – 65 = 0 ÷ 73 = 0÷9=0 0–0=0 0+0=0 1 1x1=1 x ÷ 35 = 0+1=1 x ÷ 15 = 1x1x1x1x1=1 3x2÷6=1 1÷1=1 1x1÷1÷1x1=1 2x2÷4=1 x x x 4÷ 24 = 2x2÷4=1 7÷7=1 65 ÷ 65 = 41 ÷ 41 = 21 - 20 = 23 ÷ 23 = 31 - 30 = 18 ÷ 18 = 2-1=1 7÷7=1 100 - 99 = 1 11 - 10 = 2 12 - 10 = 4÷2=2 6÷3=2 8÷4=2 72 - 70 = 10 ÷ = 32 - 30 = 20 ÷ 10 = 22 - 20 = 100 - 98 = 2÷1=2 2+1=2 1+1=2 5-3=2 2+0=2 6-4=2 0+2=2 7-5=2 4-2=2 2 3-1=2 3 x ÷ 10 = 3+0=3 2+1=3 12 x ÷ = 3x1=3 1x3=3 x 15 ÷ 20 = 1+1+1=3 x 10 ÷ 30 = 3 x 24 ÷ 24 = 15 ÷ = 30 ÷ 10 = 43 - 40 = 12 ÷ = 10 - = 9÷3=3 9-6=3 6÷2=3 8-5=3 3 13 - 10 = 4 14 –10 = 34– 30 = 0+4=4 1+3=4 2+2=4 100 – 96 = 1x4=4 2x2=4 74 – 70 = 10 – = 100 ÷ 25 = 40 ÷ 10 = 8–4=4 12 ÷ = 7–3=4 8÷2=4 6–2=4 4÷1=4 5–1=4 4 9–5=4 5 15 – 10 = 10 ÷ = 15 ÷ = 20 ÷ = 100 – 95 = 50 ÷ 10 = 85 – 80 = 100 ÷ 20 = 45 – 40 = 10 – = 5÷1=5 5x1=5 2+3=5 7-2=5 1+4=5 6-1=5 0+5=5 5-0=5 8-3=5 5 9-4=5 6 x 12 ÷ = 0+6=6 1+5=6 2+4=6 8x3÷4=6 3+3=6 x 10 ÷ = 1+2+3=6 1x2x3=6 x 18 ÷ = 45 x ÷ 15 = 24 x ÷ 12 = 9-3=6 90 ÷ 15 = 30 ÷ = 60 ÷ 10 = 46 - 40 = 24 ÷ = 96 - 90 = 18 ÷ = 100 - 94 = 12 ÷ = 10 - = 6 16 - 10 = 7 17 - 10 = 37 - 30 = 7x1=7 4+3=7 28 – 21 = 5+2=7 35 – 28 = 6+1=7 14 ÷ = 21 ÷ = 28 ÷ = 10 - = 35 ÷ = 100 - 93 = 21 – 14 = 7 14 – = 8 4x2÷2=8 7+1=8 6+2=8 5+3=8 4+4=8 24 x ÷ = 2x4=8 15 x ÷ 10 = 2x2x2=8 4x4x4÷8=8 10 x ÷ = 16 x ÷ = 9-1=8 40 ÷ = 32 ÷ = 88 ÷ 11 = 28 - 20 = 24 ÷ = 98 - 90 = 16 ÷ = 100 - 92 = 8÷1=8 10 - = 8 18 - 10 = 72 ÷ = 19 – 10 = 45 ÷ = 36 ÷ = 27 ÷ = 18 ÷ = +1 = +2 = +3 = +4 = 63 ÷ = 100 – 91 = 54 ÷ = 1+3+5=9 3x3=9 9 3+3+3=9 2+3+4=9 10 – = 9÷1=9 81 ÷ = 10 10 + + + = 10 20 - 10 = 10 + = 10 + = 10 + = 10 + = 10 80 - 70 = 10 + = 10 30 - 20 = 10 100 - 90 = 10 15 - = 10 16 - = 10 30 ÷ = 10 17 - = 10 40 ÷ = 10 18 - = 10 70 ÷ = 10 19 - = 10 100 ÷ 10 = 10 10 10 20 ÷ = 10 100 - 89 = 11 11 + = 11 + = 11 + = 11 + = 11 33 ÷ = 11 11 + = 11 77 ÷ = 11 11 - = 11 10 + = 11 22 - 11 = 11 33 - 22 = 11 44 - 33 = 11 55 - 44 = 11 88 ÷ = 11 66 - 55 = 11 11 11 11 99 ÷ = 11 22 ÷ = 11 11 ÷ = 11 20 - = 11 12 12 x ÷ = 12 11 + = 12 + = 12 + = 12 x 24 ÷ = 12 + = 12 + = 12 15 x ÷ = 12 10 + = 12 x ÷ = 12 16 x ÷ = 12 x ÷ = 12 + + = 12 20 – = 12 100 – 88 = 12 60 ÷ = 12 x x = 12 48 ÷ = 12 x = 12 36 ÷ = 12 + + + = 12 24 ÷ = 12 + + = 12 12 12 x = 12 13 13 52 – 39 = 13 13 x = 13 12 + = 13 10 + = 13 39 – 26 = 13 26 – 13 = 13 52 ÷ = 13 26 ÷ = 13 39 ÷ = 13 + = 13 + = 13 13 + = 13 13 14 14 + + + = 14 100 - 86 = 14 14 x = 14 + = 14 x = 14 + = 14 x = 14 10 + = 14 13 + = 14 14 + = 14 14 + = 14 14 14 + = 14 15 14 + = 15 x = 15 + + = 15 + + = 15 20 - = 15 + + = 15 21 - = 15 + + + + = 15 22 - = 15 10 + = 15 30 ÷ = 15 45 ÷ = 15 x 12 ÷ = 15 x 25 ÷ = 15 + = 15 x 10 ÷ = 15 15 15 15 + = 15 + = 15 23 - = 15 100 - 85 = 15 16 16 + = 16 80 ÷ = 16 x = 16 64 ÷ = 16 x x x = 16 48 ÷ = 16 x = 16 32 ÷ = 16 10 + = 16 15 + = 16 + + + = 16 100 – 84 = 16 + + + = 16 20 – = 16 + = 16 16 16 x = 16 17 17 100 – 83 = 17 22 – = 17 + = 17 16 + = 17 23 – = 17 10 + = 17 24 – = 17 25 – = 17 17 x = 17 26 – = 17 20 – = 17 17 17 21 – = 17 18 20 – = 18 + + + =18 + + + = 18 + = 18 17 + = 18 10 + = 18 24 – = 18 30 – 12 = 18 36 – 18 = 18 36 ÷ = 18 21 – = 18 + + = 18 22 – = 18 + + = 18 23 – = 18 x = 18 x ÷ = 18 18 18 18 x = 18 + + = 18 100 – 82 = 18 19 19 100 – 81 = 19 19 x = 19 22 - = 19 18 + = 19 23 – = 19 10 + = 19 24 – = 19 25 – = 19 30 – 11 = 19 26 – = 19 20 – = 19 19 19 21 – = 19 20 20 x ÷ = 20 19 + = 20 10 + 10 = 20 16 x ÷ = 20 x 10 = 20 x = 20 x 12 ÷ = 20 x x = 20 x 15 ÷ = 20 100 ÷ = 20 12 + = 20 11 + = 20 20 80 – 60 = 20 90 – 70 = 20 100 – 80 = 20 13 + = 20 + + + + = 20 14 + = 20 20 15 + = 20 + + + = 20 x ÷ = 20 21 100 – 79 = 21 + + = 21 + + + + + = 21 15 + = 21 20 + = 21 14 + = 21 28 – = 21 35 – 14 = 21 30 – = 21 + + = 21 x ÷ = 21 + + = 21 x ÷ = 21 + + = 21 42 – 21 = 21 21 21 21 x = 21 22 22 x 11 = 22 66 ÷ = 22 14 + = 22 21 + = 22 15 + = 22 20 + = 22 77 – 55 = 22 55 – 33 = 22 + + + = 22 88 – 66 = 22 11 + 11 = 22 22 22 13 + = 22 23 22 + = 23 23 x = 23 18 + = 23 16 + = 23 17 + = 23 20 + = 23 100 – 77 = 23 50 – 27 = 23 15 + = 23 30 – = 23 23 23 23 14 + = 23 19 + = 23