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
22 + 10 = ______
38 + 10 = ______
62 + 10 = ______
16 + 10 = ______
6 × 10 = ______
87 − 10 = ______
14 + 20 = ______
51 + 20 = ______
56 − 10 = ______
67 + 20 = ______
30 − 10 = ______
24 − 10 = ______
61 + 20 = ______
55 + 10 = ______
53 − 10 = ______
74 − 10 = ______
57 − 10 = ______
45 + 10 = ______
3 × 10 = ______
4 × 10 = ______
