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
63 + 10 = ______
51 − 10 = ______
22 + 10 = ______
7 × 10 = ______
24 + 20 = ______
28 − 10 = ______
56 − 10 = ______
95 − 10 = ______
24 + 10 = ______
4 × 10 = ______
55 + 20 = ______
86 + 20 = ______
57 + 10 = ______
59 + 20 = ______
31 + 20 = ______
1 × 10 = ______
39 + 10 = ______
36 − 10 = ______
38 + 20 = ______
77 − 10 = ______
