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
75 − 10 = ______
52 − 10 = ______
2 × 10 = ______
88 + 20 = ______
27 + 20 = ______
47 + 20 = ______
3 × 10 = ______
43 + 10 = ______
58 + 10 = ______
59 − 10 = ______
42 + 10 = ______
4 × 10 = ______
31 + 10 = ______
54 − 10 = ______
52 + 20 = ______
44 − 10 = ______
38 − 10 = ______
28 − 10 = ______
22 + 20 = ______
36 − 10 = ______
