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
51 + 20 = ______
75 − 10 = ______
3 × 10 = ______
78 + 10 = ______
98 − 10 = ______
21 + 10 = ______
1 × 10 = ______
53 − 10 = ______
72 + 10 = ______
83 − 10 = ______
85 − 10 = ______
27 + 10 = ______
67 + 20 = ______
24 + 10 = ______
35 + 20 = ______
56 − 10 = ______
44 − 10 = ______
43 + 10 = ______
2 × 10 = ______
15 + 20 = ______
