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
8 × 10 = ______
93 − 10 = ______
88 + 10 = ______
71 + 10 = ______
24 + 20 = ______
67 − 10 = ______
49 − 10 = ______
74 + 20 = ______
56 − 10 = ______
19 + 10 = ______
58 − 10 = ______
50 + 20 = ______
64 − 10 = ______
2 × 10 = ______
23 + 20 = ______
76 − 10 = ______
1 × 10 = ______
89 + 10 = ______
13 + 20 = ______
4 × 10 = ______
