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
50 + 10 = ______
1 × 10 = ______
78 + 10 = ______
17 + 10 = ______
8 × 10 = ______
74 − 10 = ______
18 + 20 = ______
67 + 10 = ______
51 − 10 = ______
98 − 10 = ______
4 × 10 = ______
3 × 10 = ______
76 + 10 = ______
29 + 10 = ______
50 − 10 = ______
68 + 10 = ______
6 × 10 = ______
9 × 10 = ______
38 + 20 = ______
28 + 10 = ______
