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
8 × 10 = ______
50 − 10 = ______
55 − 10 = ______
20 + 10 = ______
1 × 10 = ______
60 − 10 = ______
50 + 20 = ______
76 − 10 = ______
53 − 10 = ______
87 + 20 = ______
39 − 10 = ______
70 + 10 = ______
39 + 20 = ______
44 + 10 = ______
2 × 10 = ______
97 − 10 = ______
63 + 20 = ______
81 + 10 = ______
12 + 20 = ______
86 − 10 = ______
