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
2 × 10 = ______
69 + 10 = ______
38 − 10 = ______
68 − 10 = ______
67 + 20 = ______
9 × 10 = ______
65 + 10 = ______
76 − 10 = ______
67 − 10 = ______
84 + 10 = ______
80 + 20 = ______
7 × 10 = ______
26 + 20 = ______
53 + 10 = ______
3 × 10 = ______
17 + 10 = ______
29 + 20 = ______
22 − 10 = ______
11 + 20 = ______
86 − 10 = ______
