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
56 − 10 = ______
5 × 10 = ______
24 − 10 = ______
79 + 10 = ______
32 + 10 = ______
14 + 20 = ______
75 − 10 = ______
72 + 10 = ______
21 + 20 = ______
36 + 20 = ______
66 + 10 = ______
1 × 10 = ______
9 × 10 = ______
55 − 10 = ______
63 + 10 = ______
89 + 20 = ______
22 + 10 = ______
44 + 20 = ______
95 − 10 = ______
68 + 10 = ______
