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
46 + 20 = ______
2 × 10 = ______
75 + 20 = ______
1 × 10 = ______
58 − 10 = ______
90 − 10 = ______
8 × 10 = ______
3 × 10 = ______
67 + 20 = ______
64 − 10 = ______
67 − 10 = ______
15 + 20 = ______
54 + 20 = ______
88 + 10 = ______
13 + 20 = ______
79 − 10 = ______
42 + 10 = ______
9 × 10 = ______
74 + 20 = ______
48 − 10 = ______
