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
61 − 10 = ______
16 + 20 = ______
54 − 10 = ______
45 + 10 = ______
27 + 10 = ______
24 + 10 = ______
25 − 10 = ______
67 − 10 = ______
12 + 10 = ______
1 × 10 = ______
44 + 20 = ______
84 + 10 = ______
38 + 20 = ______
9 × 10 = ______
26 + 20 = ______
2 × 10 = ______
86 − 10 = ______
69 + 10 = ______
26 − 10 = ______
44 − 10 = ______
