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
27 + 10 = ______
61 − 10 = ______
1 × 10 = ______
19 + 10 = ______
43 + 10 = ______
74 + 20 = ______
62 − 10 = ______
15 + 20 = ______
98 − 10 = ______
78 + 10 = ______
74 + 10 = ______
3 × 10 = ______
11 + 20 = ______
38 + 10 = ______
87 + 20 = ______
88 + 20 = ______
76 + 10 = ______
6 × 10 = ______
9 × 10 = ______
32 − 10 = ______
