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
78 + 20 = ______
61 + 10 = ______
76 − 10 = ______
14 + 10 = ______
14 + 20 = ______
52 + 10 = ______
3 × 10 = ______
67 + 20 = ______
94 − 10 = ______
96 − 10 = ______
27 + 10 = ______
90 − 10 = ______
65 + 10 = ______
9 × 10 = ______
5 × 10 = ______
35 − 10 = ______
87 + 10 = ______
74 + 10 = ______
58 + 10 = ______
15 + 10 = ______
