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
78 + 10 = ______
44 + 10 = ______
60 − 10 = ______
70 + 20 = ______
11 + 10 = ______
57 + 20 = ______
86 + 10 = ______
89 + 10 = ______
14 + 20 = ______
8 × 10 = ______
2 × 10 = ______
74 − 10 = ______
18 + 20 = ______
88 + 10 = ______
90 − 10 = ______
6 × 10 = ______
61 − 10 = ______
7 × 10 = ______
1 × 10 = ______
48 − 10 = ______
