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
69 − 10 = ______
8 × 10 = ______
98 − 10 = ______
29 + 20 = ______
38 + 10 = ______
40 + 10 = ______
50 + 10 = ______
11 + 20 = ______
6 × 10 = ______
16 + 10 = ______
63 − 10 = ______
72 + 20 = ______
57 − 10 = ______
56 + 10 = ______
30 − 10 = ______
35 − 10 = ______
74 − 10 = ______
57 + 10 = ______
46 + 20 = ______
87 − 10 = ______
