Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
1 × 10 = ______
83 + 20 = ______
83 + 10 = ______
2 × 10 = ______
59 + 20 = ______
28 + 20 = ______
67 − 10 = ______
58 + 20 = ______
77 + 10 = ______
97 − 10 = ______
86 − 10 = ______
48 − 10 = ______
32 + 10 = ______
9 × 10 = ______
45 − 10 = ______
19 + 20 = ______
39 − 10 = ______
96 − 10 = ______
36 + 20 = ______
42 + 20 = ______
