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
55 + 20 = ______
16 + 10 = ______
46 − 10 = ______
7 × 10 = ______
75 + 20 = ______
45 − 10 = ______
59 + 20 = ______
51 + 20 = ______
9 × 10 = ______
4 × 10 = ______
17 + 20 = ______
66 + 20 = ______
2 × 10 = ______
3 × 10 = ______
69 + 10 = ______
41 − 10 = ______
67 + 20 = ______
67 − 10 = ______
61 − 10 = ______
94 − 10 = ______
