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
40 − 10 = ______
61 + 10 = ______
37 − 10 = ______
68 − 10 = ______
57 − 10 = ______
51 + 10 = ______
75 + 10 = ______
9 × 10 = ______
67 − 10 = ______
85 − 10 = ______
85 + 20 = ______
59 − 10 = ______
16 + 20 = ______
70 + 10 = ______
49 + 20 = ______
37 + 20 = ______
74 − 10 = ______
81 + 20 = ______
3 × 10 = ______
8 × 10 = ______
