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
1 × 10 = ______
61 − 10 = ______
6 × 10 = ______
32 + 20 = ______
4 × 10 = ______
34 + 20 = ______
59 + 20 = ______
78 + 10 = ______
20 + 10 = ______
74 − 10 = ______
76 − 10 = ______
64 + 10 = ______
36 − 10 = ______
9 × 10 = ______
51 + 10 = ______
61 + 20 = ______
16 + 10 = ______
87 + 20 = ______
69 − 10 = ______
74 + 10 = ______
