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
92 − 10 = ______
75 + 10 = ______
6 × 10 = ______
3 × 10 = ______
9 × 10 = ______
30 + 10 = ______
1 × 10 = ______
8 × 10 = ______
72 + 10 = ______
76 − 10 = ______
59 − 10 = ______
19 + 20 = ______
60 − 10 = ______
74 − 10 = ______
27 + 10 = ______
91 − 10 = ______
32 − 10 = ______
56 + 10 = ______
69 + 20 = ______
21 − 10 = ______
