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
37 + 20 = ______
69 − 10 = ______
48 − 10 = ______
8 × 10 = ______
94 − 10 = ______
67 + 20 = ______
29 + 10 = ______
47 − 10 = ______
67 − 10 = ______
30 + 20 = ______
85 + 20 = ______
74 + 20 = ______
39 − 10 = ______
9 × 10 = ______
85 + 10 = ______
31 + 20 = ______
87 + 10 = ______
4 × 10 = ______
52 − 10 = ______
45 + 20 = ______
